Post by Nadica (She/Her) on Dec 10, 2024 5:22:43 GMT
AirFanta 3Pro Review – A High-Performance Yet Affordable Air Purifier - Published Dec 9, 2024
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AirFanta is a name that I hear more about every day. While it’s a relatively niche company, it’s quickly becoming well-known – at least within the air quality ‘enthusiast’ community – for performant yet affordable air purifiers and air quality monitors. I’ve been using the AirFanta G2 Air Quality Monitor for quite a few months now, but the two products that have always interested me the most are 3Pro and 4Lite air purifiers.
After having the 3Pro set up inside my office for over two weeks now, I am happy to be able to present my full review of the device. For anyone unaware, this purifier is designed to filter a massive amount of air (we will discuss the CADR and more soon!) at a relatively affordable price. It does this by being essentially a pre-assembled CR (Corsi-Rosenthal) Box – a form of air purifier that was itself created due to the need for affordable and effective air purification devices.
While the 3Pro doesn’t embrace the typical DIY aspect of traditional CR Boxes, it has the advantage of having proven performance (no need to worry about whether your DIY box is effective!) and being ready to go out of the box. However, perhaps my favourite aspect of this device over traditional CR Boxes is how easily obtainable it is. While this probably isn’t an issue for anyone in the U.S. or Europe, I find it hard to source good HEPA filters in New Zealand at an affordable price. The 3Pro ensures I don’t run into this issue.
In today’s review of the AirFanta 3Pro, I want to answer a few key questions. Firstly, how does it perform? Secondly, how does it compare to more ‘traditional’ air purifiers? Finally, and most importantly, is the 3Pro worth the markup compared to making your own CR Box at home? By the end of the article, I will share the answers and my opinions regarding each of these questions. Let’s dive in!
The key selling point of the AirFanta 3Pro is its fantastic CADR – especially at this price. For anyone new to air purifiers, CADR stands for clean air delivery rate, which indicates how much air an air purifier can clean and deliver in a set period. The measurement typically used for CADR is CFM, or cubic feet per minute. A higher CADR in CFM indicates the purifier delivers more clean air.
CADR is calculated by considering both the filter efficiency and the airflow through the filters, making it a much better metric (and the standard for air purifiers) than airflow alone. Most CADR tests use a room of around 30m3 and test how much faster the purifier removes particles from the air than if they were left to settle naturally without any other influences.
So, what is the CADR of the 3Pro? It is quite impressive, 413cfm (702 m3/h) at full speed. To best put this in perspective, I recommend reading the fantastic HouseFresh review to see how it compares to other devices currently on the market (spoiler alert; it performs very favourably). I also believe these official figures, as multiple other sources have confirmed them.
The AirFanta 3Pro uses HEPA H11 filters, which are rated to provide ≥ 95% filtration. It’s worth noting that while this figure may not seem that high and that while many air purifiers use higher-rated filters, the H11 filters used here aren’t necessarily bad. That is because, unlike respirators and masks, air purifiers are not designed to purify the air as best possible on a single pass. Rather, if an air purifier can continually filter the same air after multiple passes through the filter, the particle count and concentration will be significantly reduced.
This is important to note because H11 filters are less dense, allowing for better airflow and generally with less noise. Compared to masks, you can think of the balance between filtration and breathability – generally, the more filtration a mask or respirator provides, the less breathable it is. The same goes for air purifiers. The key difference here is that purifiers are designed to have air pass through them multiple times, unlike a mask or respirator, which only has one chance to filter the air before the wearer breathes it. This is why, despite having ‘only’ an H11 filter, the 3Pro can achieve a fantastic CADR.
Of course, this is a very simple explanation, but it’s important to clarify this because I can predict many questions asking, ‘But why weren’t better filters such as HEPA H13 filters used?’. While I can’t speak for the exact answer (you’d have to ask Adam from AirFanta about that!), it’s likely to strike a balance between single-pass filtration performance, airflow, and noise level. While we’ll dive into it soon, I believe complaints about the H11 filter will quickly disappear once you see the performance that the AirFanta 3Pro has to offer.
It’s also worth noting that carbon filters are available, which will provide filtration through adsorption for VOCs and many odours. While I didn’t get these filters to test, some people will opt for them to help manage VOCs. Since these add another layer to the filter, they will likely slightly drop the CADR, but probably not enough to make any significant impact (and, of course, the extra filtration is a big benefit).
AirFanta also has a full list of third-party certifications and test results, which can be viewed here. Interestingly, both bacterial efficiency and viral efficiency reports from Guangzhou Institute of Microbiology Group Co., Ltd. (a CNAS-accredited laboratory) have been provided, and both reports show a > 99.99% decrease in particle concentration after 60 minutes of use in a 30m3 room. The bacterial test goes further and shows the results after 15 minutes, 30 minutes, and 45 minutes. These results show a ≥ 95.63%, ≥ 99.91% and 99.99% drop in tested particles, respectively.
These results show that, at least in a room around 30m3 in size, the AirFanta 3Pro can reduce bacterial and viral particles by ≥ 99.9% in 30 minutes, with 60 minutes seeing a near complete removal of such particles. While we can’t tell exactly what size the particles were in this testing (at least not without paying for access to the original standards), these results are very promising. Potentially worth noting is that since the 3Pro is rated for 702 m3/h, there would have been around 23 air changes within one hour in the 30m3 test chamber. Therefore, the ≥ 95.63% is after almost six air changes, and ≥ 99.91% after around 12.
Of course, these tests and the stated CADR are at the device’s maximum fan speed, which isn’t ideal in many situations. While it’s important to know a device’s maximum performance when needed, it’s more likely you’ll want to leave the device running at a lower speed either all the time or at least quite regularly. Below are the stated CADRs at different fan speeds:
6 – 413CFM
5 – 374CFM
4 – 321CFM
3 – 247CFM
2 – 141CFM
1 – 57CFM
Of course, I was also curious to run some tests myself, but I must make the disclaimer that my tests are far from scientific. That said, I wanted to perform some testing similar to a real-life setting where the AirFanta 3Pro is likely to be used. As such, I decided to set up a test room. I measured this room to be 25.6m3, which is about the size of a standard bedroom (it is a bedroom!). While this room is smaller than what I believe this device is intended for, it’s the most controllable room in my house regarding airflow as it only has one door and one window, which can easily be closed and no other forms of ventilation or air disturbances.
In this room, I burned incense until I reached a PM2.5 concentration of 500ug/m3. However, since I can’t exactly control the PM concentration, it ended up being somewhere between 500 and 600 in my tests. I then put the incense out and did a control test to see how long it took the particles to settle without any assistance at all. This took around 90 minutes, and I used this as my baseline.
I monitored the particle concentrations with five AirGradient monitors that were located in each corner and the centre of the room. I then reran this experiment three more times – once with the purifier at maximum speed, once at half speed, and once at the minimum speed to see how long the concentration took to reach < 5ug/m3. I measured the particle concentration by averaging the data from all five monitors to ensure the whole room had been filtered. Here are my results.
In this graph, you can see the baseline data in blue (labelled Ambient) and the particle concentration drop from the AirFanta 3Pro at maximum speed (speed 6) in red. As you can see, it took around 90 minutes for the particle count to drop to < 5ug/m3 without the purifier running but less than 20 minutes with the device at maximum speed. I was very impressed by these first results, and while I wouldn’t want to run the device at full speed often as it is loud, I appreciate having a good peak performance for times when you need to clean the air in a room quickly.
I reran this test, but this time with the 3Pro at half speed (speed 3) and was impressed by the relatively low performance drop. I was worried my results were incorrect, and I reran this three times, but each result was within one minute of the initial result. It looks like a large chunk of the device’s performance is retained between the higher speeds, even though the noise level decreases significantly. This gave me high hopes for the 3Pro’s performance at minimum speed.
Unfortunately, but perhaps not unexpectedly, the device performed far worse at the lowest speed (speed 1). While the particle concentration did drop more quickly than without the device, it was vastly slower than at the faster speeds. It is worth noting that this is not bad at all, as the device is very quiet at this speed and we can see the performance is clearly there, if needed, just turn the device to a higher speed. However, I had inflated hopes after seeing the great performance at higher speeds. Of course, this does match with the stated speed 1 CADR which is roughly 1/8 of the maximum CADR at speed 6.
If we add the times it took the 3Pro to reduce the PM concentration to below 5ug/m3 at each speed setting, we can see that it took between 17.3 minutes and 80.1 minutes to clean the room, depending on the speed. Interestingly, between the higher speeds (speeds 3-6), there appears to be little performance drop-off but a significant improvement in noise levels. At the slow end, the device takes a long time to filter the room, and if you want to use these near-silent speeds, you will probably want to have the device constantly on.
It’s worth noting that previously, the AirFanta 3Pro came with a voltage dial on the adapter. This could be used to adjust the speed, and many reviews of the device still refer to this voltage dial (essentially, a speed dial). Newer versions come with a speed dial with speeds 1-6, so I have referred to speeds instead of voltages for this section.
Before concluding this section, I was also curious how this device would perform if I lit incense in the room while the air purifier was on. I didn’t have a reason for doing this other than curiosity. Still, considering the stellar performance at the higher fan speeds, I wondered how the purifier would handle a pollutant source emitting particles while the device was running. Below, you can see the results (keeping in mind that this same room reaches over 1000ug/m3 when burning incense without an air purifier).
As you can see, the AirFanta 3Pro significantly reduced the maximum particle concentration in the room and rapidly cleaned the air once the incense finished burning. I would be very confident using a device such as this even during periods of heavy pollution, such as during wildfire season.
Overall, I’m quite impressed with the performance of the AirFanta 3Pro, and although it’s loud at full speed, it’s great to know that it’s more than capable of cleaning a small to medium-sized room quickly when needed. Larger rooms will take longer to filter, but I am confident this device can do it based on this performance.
If you prefer a quieter device, you can still use the AirFanta 3Pro, but you will want to leave it at a lower speed and constantly have it on. Thankfully, at the lower speeds, it’s a relatively quiet device, and I found it easy to work even with the purifier constantly on – as long as it was set to a lower speed, such as 1 or 2.
On the certifications page (located here), AirFanta also discloses and publically makes its results from non-performance-related certifications publicly available. There are a few pertinent and important documents here, so let’s discuss these before moving on. For the 3Pro, we can find the following documents provided:
UL507 certificate of AirFanta 3Pro
CE-EMC certificate of AirFanta 3Pro and 4Lite
CE-LVD certificate of AirFanta 3Pro and 4Lite
FCC certificate of AirFanta 3Pro and 4Lite
California Air Resources Board certification of Airfanta 3Pro
Let’s review these individually, beginning with the UL507 certificate at the top. This certification might seem minor, but this is a safety standard for low and mid-powered fans such as those in PCs, kitchen hood vents, and, obviously, some air purifiers. The documentation for this certification is extensive (around 200 pages long), but this certification ensures the fans on the 3Pro are safe from a range of potential issues.
The next two certifications, both CE certificates from the European Union, indicate that the device meets EMC (electromagnetic compatibility) and LVD (low voltage directive) requirements. These are essentially further safety tests and indicate that the device is safe and provides high protection from potential EMC and LVD dangers.
The FCC certificate shows that the AirFanta 3Pro complies with FCC requirements, which are pertinent to customers from the United States. Still, these certifications are also helpful for trust-building with global customers. While I’m not U.S.-based, I certainly feel more confident in a product if it’s also FCC-compliant.
Finally, the CARB (California Air Resources Board) certification shows that the AirFanta 3Pro complies with California’s electrical safety and ozone requirements. This is particularly important as ozone can be a big issue with some air purifiers, and it’s reassuring to know that this is not an issue in the case of the AirFanta 3Pro.
If you’ve ever seen a CR Box, you will already know exactly what to expect from the 3Pro because that’s exactly what it is – a CR Box with pre-chosen parts that come as one ready-to-assemble package. While CR boxes aren’t that hard to assemble, the 3Pro streamlines the process and removes the difficulty of selecting and choosing your own parts. While some enthusiasts might opt for another CR Box, many other prospective customers will appreciate this approach.
When you open the 3Pro’s box, you will be met with six ‘layers’ that must be assembled. This is a very clean approach, as it means that the packaging for the device is relatively compact (albeit still quite heavy), and it even means that the device can be transported and reassembled easily. While it would be a stretch to call this device portable (that’s what the AirFanta 4Lite and SmartAir QT3 are for!), this means it is far more compact than other air purifiers with similar CADRs. While it is still quite large, you could easily take it on the road and use it at hotels, or perhaps even fly with it if you are taking large suitcases.
Back to actually assembling the product! Once you open the box, you will see six panels layered on top of one another. These are the cube’s six sides, with four being HEPA filters, one being a solid plastic base for the device, and the final being the top, where the four fans are located. Assembling the device is easy, and you will want to place the base on the ground before slotting the four filters into it. The only potential difficulty with assembling this purifier is holding the four sides in place as you slot the top on, but even this is quite straightforward with the included velcro intended for exactly this purpose.
A manual is included, but the device is so easy to put together and take apart that I can’t imagine anyone ever using it past the first assembly. Even then, it’s not really needed, as assembling the device is quite self-explanatory. The only note I think might be important to the user is that the mesh surface on the filters should be facing outwards (not the filtering surface, which should face inwards).
All of this is to say that assembling the device is very straightforward, and no one should be scared away or turned off this device because it has a small DIY element. It’s also a bit easier to assemble than other CR boxes as the slots have already been cut out of the base plate, and everything can be put together without the need for glue, tape, or other materials. Perhaps more helpful, the filters have already been chosen, and there is no need to shop around for the best price-performance filter.
Once assembled, the device takes the shape of quite a compact CR Box. On top of that, I must add that I think this device also looks a lot better than any traditional CR Box – at least any that I’ve ever made! While it still has an industrial look, it’s a device that could quite easily fit into a classroom, office, or room without attracting too much attention. While I value aesthetics much less than performance, I appreciate having a device that looks good, too – especially if it can blend in.
Once assembled, the device feels quite solid, and despite there being no adhesive or tape used in the assembly of the purifier, I feel confident lifting it and moving it without dislodging the pieces. With that said, I tend to lift the device from the bottom and hold the top down to ensure none of the pieces slide out from their intended positions.
On top of the purifier are four large fans connected to a controller that will allow you to adjust the speed of the device. These fans look almost identical to large PC fans, and they’re held in place by a wire bracket that also serves as an extra layer of protection to stop any children or animals from getting fingers or paws into the fans. That said, if you have the device around children, you may want to place it up higher so they can’t easily reach the fans.
That’s really all there is to the design of this device. It’s very simple, but it’s also affordable and performant. While some might miss the smart features and connectivity of more pricey air purifiers, the two types of devices cater to very different customers. Overall, I’m a fan of this straightforward approach, which reminds me of the SmartAir Sqair.
The AirFanta 3Pro uses four 140mm fans to push air through the filters. Characteristically, smaller fans tend to have higher-pitched sounds than larger fans and the AirFanta 3Pro sits somewhere in the middle as it uses medium-sized fans. If you have a desktop PC with a case fan (not the other fans, such as the higher-pitched CPU fan), you’ll likely already know what these fans sound like, as most desktop cases use 120mm or 140mm fans. This isn’t an unpleasant sound, but it is quite audible.
To see how loud the AirFanta 3Pro is, I conducted noise tests at 30cm and 2 metres with a sound level metre that measures in dBA (A-weighted decibel). dBA differs from traditional dB because it is adjusted for the human ear’s sensitivity to different frequencies. Low and very high frequencies are de-emphasized, mimicking how humans perceive loudness. In other words, it’s a better representation of the actual noise level than dB for a device such as an air purifier. However, I do want to note this as many other websites use dB, which will explain why my results are significantly different.
For further context, here are a few examples of the volumes of some noises in dBA. Obviously, these can vary, and especially with dBA, they will vary between different devices. However, they are rough examples:
10 dBA – Breathing or leaves rustling: Extremely quiet.
30 dBA – Whispering: Comparable to a quiet library.
40 dBA – Refrigerator hum: A typical low background noise.
50 dBA – Moderate rainfall: Light, soothing noise.
60 dBA – Normal conversation: The sound of talking at a close distance.
70 dBA – Vacuum cleaner: Considered moderate noise, can be annoying over time.
80 dBA – Heavy traffic or a loud alarm clock: Noise becomes uncomfortable after prolonged exposure.
As you can see, at the lowest speeds, the 3Pro doesn’t add much to the noise of most rooms, but at the highest speeds, it can sound almost as loud as a vacuum cleaner (provided you are close to it). This is a lot of variation, but I like how this device gives the user full control over speed and noise, allowing them to pick a good balance.
I think most people will have this device running on speed 2 or 3, and both sounds are very manageable at a distance. If you do want a short burst of cleaning, the device will be significantly louder, and that’s why I only recommend using the higher speeds when needed.
When it comes to power consumption, the device can go from very low power to relatively high power. Here is a list of the wattage and voltage at each fan speed:
6 – 33.2 watt – 12v
5 – 27.4 watt – 11v
4 – 18.9 watt – 9.3v
3 – 11.1 watt – 7.3v
2 – 4.7 watt – 4.8v
1 – 2.2 watt – 3.0v
I won’t dive into power costs here because those vary greatly depending on where you reside, but I hope these specifications can give some insights. What’s most impressive to me is how much range this device has, whether we are discussing volume or power draw. There is such a large range that you can choose exactly what setting works best for you and leave the device to it.
The AirFanta 3Pro costs $149 or $159 (USD) depending on whether you opt for the CE-certified or CARB-certified version (the CARB variant is the lower priced of the two). It’s surprising to see a different price on these two units, but I assume it’s due to extra costs, either with the CE certification or getting the device into Europe. Either way, if you’re in the U.S. (or any non-EU country), the CARB variant will work, and that’s the model I received.
In the box, you will get six panels to assemble the 3Pro. This includes four HEPA H11 filters, which, as per AirFanta, should be good to last 6-12 months, depending on air quality conditions. In most cases, I would assume these filters will last closer to 12 months, but those who experience severe wildfire seasons or whose homes are exposed to consistent year-round pollution may need to replace the filters more regularly.
When you need your first filter replacement, you can opt for the default H11 filters or H11 filters with activated carbon. Interestingly, it doesn’t seem you can choose the filters you get with the device initially. If you want activated carbon filters from the get-go, you must purchase the device alongside an extra pack of filters. The activated carbon filters will set you back $74.99 compared to the basic filters, which cost $54.
The filters aren’t cheap, but it’s important to remember that each filter replacement pack you order has four individual filters, which is a substantial amount of filter materials. It’s also important to note that, unfortunately, you will need to purchase official AirFanta filters as they are smaller than most square HEPA filters, and other filters will not fit on this device. I don’t think this is a big deal, as I appreciate the smaller form factor of this device over larger devices, and even four HEPA filters from other brands will not be cheap.
If we estimate that most users use each set of filters for around nine months, your yearly filter costs for non-activated carbon filters will be $67.5. On the other hand, if you opt for the extra VOC adsorption of the carbon filters, you are looking at an ongoing cost of just under $100 per year. This is in a similar price range to other equally performant air purifiers, and this device’s initial cost is also much lower.
While power cost also needs to be factored into the ongoing cost equation, that cost will vary significantly depending on your air purifier usage (hours, speed, etc) and location. However, regardless of usage patterns, you should plan to spend between $67 and $100 on replacement filters for this device every year.
Overall, I’ve been very happy with the AirFanta 3Pro. While it’s not a perfect air purifier – if one even exists – this is a fantastic device that balances many difficult factors. Ultimately, it comes in as an affordable air purifier that doesn’t skimp on performance. In fact, it has a higher CADR than many more (and much more) expensive air purifiers. Furthermore, it offers a wide range of speeds that allow the user to choose the ideal balance between speed and sound for the setting.
I’ve always been a fan of the CR box concept, but I think the AirFanta 3Pro takes this a step further and, due to this, will appeal to many more people. While I’ve never had an issue constructing CR boxes, I often have difficulty sourcing the parts (especially good filters), and I appreciate how the 3Pro can provide the same or better performance at a slightly higher price while also simplifying the shopping process for me.
Surprisingly, for a device of this size, it’s also quite portable, and you will be hard-pressed to find anything that provides a higher CADR than this device while also being ‘packable’. While I still wouldn’t go so far as to say it can fit in a backpack, it can definitely fit in a car or suitcase and is ideal for longer trips where you might be staying in hotels with unknown air quality. If, on the other hand, you want to use it around the house, it’s also a great device.
The biggest disadvantages I see with the AirFanta 3Pro are the sound and the design. There’s no denying that while the device is powerful, it’s also loud at its higher speeds. While this isn’t unusual for an air purifier, it is worth noting that you probably won’t want to run this device at its higher speeds unless necessary. I usually find myself using speed 2 or 3, which is the sweet spot for most users. On the upside, the lower speeds are almost silent, and although they significantly diminish performance, they are good for users who are okay with constantly running the device.
The design may also bug some users. While I don’t mind (and actually like) the device’s industrial design, I know some people don’t use CR boxes due to the design. If you don’t like the look of CR boxes, the chances are you also won’t like the design of this device. With that said, this design allows this device to have such a good price-to-performance ratio, and I think many potential customers will appreciate this more.
Overall, the AirFanta 3Pro is a cost-effective air purifier that should be on your radar – especially if price is a concern. If you’ve tried the 3Pro, I would love to hear your thoughts, so please feel free to use the comments section below! Furthermore, if you have any remaining questions, please don’t hesitate to as,k and I will do my best to reply. Thank you for reading.
Pros:
High CADR (413 cfm) for effective air purification
Affordable compared to similar high-performance devices
Pre-assembled CR box design simplifies setup
Portable and compact for travel use
Certified for safety (UL507, CE-EMC, FCC, CARB)
Cons:
Loud at higher speeds
Design may not appeal to all users (industrial look)
Limited to proprietary filters, increasing costs
No activated carbon filters included in basic kit
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www.amazon.com/stores/AirFanta/page/0D35BA0F-6AFE-48BB-BB83-E984C65192D4?asc_campaign=c192889518f863d96d278a446b3a951d&asc_source=01H1P39M5ZSG9J6WR6B1HBK9M0&language=en_US&linkCode=sl2&linkId=be7b5afa91953d14a40a0b6fb293d6aa&ref_=as_li_ss_tl&tag=namespacebran492-20
air-fanta.com/?dt_id=2137762
AirFanta is a name that I hear more about every day. While it’s a relatively niche company, it’s quickly becoming well-known – at least within the air quality ‘enthusiast’ community – for performant yet affordable air purifiers and air quality monitors. I’ve been using the AirFanta G2 Air Quality Monitor for quite a few months now, but the two products that have always interested me the most are 3Pro and 4Lite air purifiers.
After having the 3Pro set up inside my office for over two weeks now, I am happy to be able to present my full review of the device. For anyone unaware, this purifier is designed to filter a massive amount of air (we will discuss the CADR and more soon!) at a relatively affordable price. It does this by being essentially a pre-assembled CR (Corsi-Rosenthal) Box – a form of air purifier that was itself created due to the need for affordable and effective air purification devices.
While the 3Pro doesn’t embrace the typical DIY aspect of traditional CR Boxes, it has the advantage of having proven performance (no need to worry about whether your DIY box is effective!) and being ready to go out of the box. However, perhaps my favourite aspect of this device over traditional CR Boxes is how easily obtainable it is. While this probably isn’t an issue for anyone in the U.S. or Europe, I find it hard to source good HEPA filters in New Zealand at an affordable price. The 3Pro ensures I don’t run into this issue.
In today’s review of the AirFanta 3Pro, I want to answer a few key questions. Firstly, how does it perform? Secondly, how does it compare to more ‘traditional’ air purifiers? Finally, and most importantly, is the 3Pro worth the markup compared to making your own CR Box at home? By the end of the article, I will share the answers and my opinions regarding each of these questions. Let’s dive in!
The key selling point of the AirFanta 3Pro is its fantastic CADR – especially at this price. For anyone new to air purifiers, CADR stands for clean air delivery rate, which indicates how much air an air purifier can clean and deliver in a set period. The measurement typically used for CADR is CFM, or cubic feet per minute. A higher CADR in CFM indicates the purifier delivers more clean air.
CADR is calculated by considering both the filter efficiency and the airflow through the filters, making it a much better metric (and the standard for air purifiers) than airflow alone. Most CADR tests use a room of around 30m3 and test how much faster the purifier removes particles from the air than if they were left to settle naturally without any other influences.
So, what is the CADR of the 3Pro? It is quite impressive, 413cfm (702 m3/h) at full speed. To best put this in perspective, I recommend reading the fantastic HouseFresh review to see how it compares to other devices currently on the market (spoiler alert; it performs very favourably). I also believe these official figures, as multiple other sources have confirmed them.
The AirFanta 3Pro uses HEPA H11 filters, which are rated to provide ≥ 95% filtration. It’s worth noting that while this figure may not seem that high and that while many air purifiers use higher-rated filters, the H11 filters used here aren’t necessarily bad. That is because, unlike respirators and masks, air purifiers are not designed to purify the air as best possible on a single pass. Rather, if an air purifier can continually filter the same air after multiple passes through the filter, the particle count and concentration will be significantly reduced.
This is important to note because H11 filters are less dense, allowing for better airflow and generally with less noise. Compared to masks, you can think of the balance between filtration and breathability – generally, the more filtration a mask or respirator provides, the less breathable it is. The same goes for air purifiers. The key difference here is that purifiers are designed to have air pass through them multiple times, unlike a mask or respirator, which only has one chance to filter the air before the wearer breathes it. This is why, despite having ‘only’ an H11 filter, the 3Pro can achieve a fantastic CADR.
Of course, this is a very simple explanation, but it’s important to clarify this because I can predict many questions asking, ‘But why weren’t better filters such as HEPA H13 filters used?’. While I can’t speak for the exact answer (you’d have to ask Adam from AirFanta about that!), it’s likely to strike a balance between single-pass filtration performance, airflow, and noise level. While we’ll dive into it soon, I believe complaints about the H11 filter will quickly disappear once you see the performance that the AirFanta 3Pro has to offer.
It’s also worth noting that carbon filters are available, which will provide filtration through adsorption for VOCs and many odours. While I didn’t get these filters to test, some people will opt for them to help manage VOCs. Since these add another layer to the filter, they will likely slightly drop the CADR, but probably not enough to make any significant impact (and, of course, the extra filtration is a big benefit).
AirFanta also has a full list of third-party certifications and test results, which can be viewed here. Interestingly, both bacterial efficiency and viral efficiency reports from Guangzhou Institute of Microbiology Group Co., Ltd. (a CNAS-accredited laboratory) have been provided, and both reports show a > 99.99% decrease in particle concentration after 60 minutes of use in a 30m3 room. The bacterial test goes further and shows the results after 15 minutes, 30 minutes, and 45 minutes. These results show a ≥ 95.63%, ≥ 99.91% and 99.99% drop in tested particles, respectively.
These results show that, at least in a room around 30m3 in size, the AirFanta 3Pro can reduce bacterial and viral particles by ≥ 99.9% in 30 minutes, with 60 minutes seeing a near complete removal of such particles. While we can’t tell exactly what size the particles were in this testing (at least not without paying for access to the original standards), these results are very promising. Potentially worth noting is that since the 3Pro is rated for 702 m3/h, there would have been around 23 air changes within one hour in the 30m3 test chamber. Therefore, the ≥ 95.63% is after almost six air changes, and ≥ 99.91% after around 12.
Of course, these tests and the stated CADR are at the device’s maximum fan speed, which isn’t ideal in many situations. While it’s important to know a device’s maximum performance when needed, it’s more likely you’ll want to leave the device running at a lower speed either all the time or at least quite regularly. Below are the stated CADRs at different fan speeds:
6 – 413CFM
5 – 374CFM
4 – 321CFM
3 – 247CFM
2 – 141CFM
1 – 57CFM
Of course, I was also curious to run some tests myself, but I must make the disclaimer that my tests are far from scientific. That said, I wanted to perform some testing similar to a real-life setting where the AirFanta 3Pro is likely to be used. As such, I decided to set up a test room. I measured this room to be 25.6m3, which is about the size of a standard bedroom (it is a bedroom!). While this room is smaller than what I believe this device is intended for, it’s the most controllable room in my house regarding airflow as it only has one door and one window, which can easily be closed and no other forms of ventilation or air disturbances.
In this room, I burned incense until I reached a PM2.5 concentration of 500ug/m3. However, since I can’t exactly control the PM concentration, it ended up being somewhere between 500 and 600 in my tests. I then put the incense out and did a control test to see how long it took the particles to settle without any assistance at all. This took around 90 minutes, and I used this as my baseline.
I monitored the particle concentrations with five AirGradient monitors that were located in each corner and the centre of the room. I then reran this experiment three more times – once with the purifier at maximum speed, once at half speed, and once at the minimum speed to see how long the concentration took to reach < 5ug/m3. I measured the particle concentration by averaging the data from all five monitors to ensure the whole room had been filtered. Here are my results.
In this graph, you can see the baseline data in blue (labelled Ambient) and the particle concentration drop from the AirFanta 3Pro at maximum speed (speed 6) in red. As you can see, it took around 90 minutes for the particle count to drop to < 5ug/m3 without the purifier running but less than 20 minutes with the device at maximum speed. I was very impressed by these first results, and while I wouldn’t want to run the device at full speed often as it is loud, I appreciate having a good peak performance for times when you need to clean the air in a room quickly.
I reran this test, but this time with the 3Pro at half speed (speed 3) and was impressed by the relatively low performance drop. I was worried my results were incorrect, and I reran this three times, but each result was within one minute of the initial result. It looks like a large chunk of the device’s performance is retained between the higher speeds, even though the noise level decreases significantly. This gave me high hopes for the 3Pro’s performance at minimum speed.
Unfortunately, but perhaps not unexpectedly, the device performed far worse at the lowest speed (speed 1). While the particle concentration did drop more quickly than without the device, it was vastly slower than at the faster speeds. It is worth noting that this is not bad at all, as the device is very quiet at this speed and we can see the performance is clearly there, if needed, just turn the device to a higher speed. However, I had inflated hopes after seeing the great performance at higher speeds. Of course, this does match with the stated speed 1 CADR which is roughly 1/8 of the maximum CADR at speed 6.
If we add the times it took the 3Pro to reduce the PM concentration to below 5ug/m3 at each speed setting, we can see that it took between 17.3 minutes and 80.1 minutes to clean the room, depending on the speed. Interestingly, between the higher speeds (speeds 3-6), there appears to be little performance drop-off but a significant improvement in noise levels. At the slow end, the device takes a long time to filter the room, and if you want to use these near-silent speeds, you will probably want to have the device constantly on.
It’s worth noting that previously, the AirFanta 3Pro came with a voltage dial on the adapter. This could be used to adjust the speed, and many reviews of the device still refer to this voltage dial (essentially, a speed dial). Newer versions come with a speed dial with speeds 1-6, so I have referred to speeds instead of voltages for this section.
Before concluding this section, I was also curious how this device would perform if I lit incense in the room while the air purifier was on. I didn’t have a reason for doing this other than curiosity. Still, considering the stellar performance at the higher fan speeds, I wondered how the purifier would handle a pollutant source emitting particles while the device was running. Below, you can see the results (keeping in mind that this same room reaches over 1000ug/m3 when burning incense without an air purifier).
As you can see, the AirFanta 3Pro significantly reduced the maximum particle concentration in the room and rapidly cleaned the air once the incense finished burning. I would be very confident using a device such as this even during periods of heavy pollution, such as during wildfire season.
Overall, I’m quite impressed with the performance of the AirFanta 3Pro, and although it’s loud at full speed, it’s great to know that it’s more than capable of cleaning a small to medium-sized room quickly when needed. Larger rooms will take longer to filter, but I am confident this device can do it based on this performance.
If you prefer a quieter device, you can still use the AirFanta 3Pro, but you will want to leave it at a lower speed and constantly have it on. Thankfully, at the lower speeds, it’s a relatively quiet device, and I found it easy to work even with the purifier constantly on – as long as it was set to a lower speed, such as 1 or 2.
On the certifications page (located here), AirFanta also discloses and publically makes its results from non-performance-related certifications publicly available. There are a few pertinent and important documents here, so let’s discuss these before moving on. For the 3Pro, we can find the following documents provided:
UL507 certificate of AirFanta 3Pro
CE-EMC certificate of AirFanta 3Pro and 4Lite
CE-LVD certificate of AirFanta 3Pro and 4Lite
FCC certificate of AirFanta 3Pro and 4Lite
California Air Resources Board certification of Airfanta 3Pro
Let’s review these individually, beginning with the UL507 certificate at the top. This certification might seem minor, but this is a safety standard for low and mid-powered fans such as those in PCs, kitchen hood vents, and, obviously, some air purifiers. The documentation for this certification is extensive (around 200 pages long), but this certification ensures the fans on the 3Pro are safe from a range of potential issues.
The next two certifications, both CE certificates from the European Union, indicate that the device meets EMC (electromagnetic compatibility) and LVD (low voltage directive) requirements. These are essentially further safety tests and indicate that the device is safe and provides high protection from potential EMC and LVD dangers.
The FCC certificate shows that the AirFanta 3Pro complies with FCC requirements, which are pertinent to customers from the United States. Still, these certifications are also helpful for trust-building with global customers. While I’m not U.S.-based, I certainly feel more confident in a product if it’s also FCC-compliant.
Finally, the CARB (California Air Resources Board) certification shows that the AirFanta 3Pro complies with California’s electrical safety and ozone requirements. This is particularly important as ozone can be a big issue with some air purifiers, and it’s reassuring to know that this is not an issue in the case of the AirFanta 3Pro.
If you’ve ever seen a CR Box, you will already know exactly what to expect from the 3Pro because that’s exactly what it is – a CR Box with pre-chosen parts that come as one ready-to-assemble package. While CR boxes aren’t that hard to assemble, the 3Pro streamlines the process and removes the difficulty of selecting and choosing your own parts. While some enthusiasts might opt for another CR Box, many other prospective customers will appreciate this approach.
When you open the 3Pro’s box, you will be met with six ‘layers’ that must be assembled. This is a very clean approach, as it means that the packaging for the device is relatively compact (albeit still quite heavy), and it even means that the device can be transported and reassembled easily. While it would be a stretch to call this device portable (that’s what the AirFanta 4Lite and SmartAir QT3 are for!), this means it is far more compact than other air purifiers with similar CADRs. While it is still quite large, you could easily take it on the road and use it at hotels, or perhaps even fly with it if you are taking large suitcases.
Back to actually assembling the product! Once you open the box, you will see six panels layered on top of one another. These are the cube’s six sides, with four being HEPA filters, one being a solid plastic base for the device, and the final being the top, where the four fans are located. Assembling the device is easy, and you will want to place the base on the ground before slotting the four filters into it. The only potential difficulty with assembling this purifier is holding the four sides in place as you slot the top on, but even this is quite straightforward with the included velcro intended for exactly this purpose.
A manual is included, but the device is so easy to put together and take apart that I can’t imagine anyone ever using it past the first assembly. Even then, it’s not really needed, as assembling the device is quite self-explanatory. The only note I think might be important to the user is that the mesh surface on the filters should be facing outwards (not the filtering surface, which should face inwards).
All of this is to say that assembling the device is very straightforward, and no one should be scared away or turned off this device because it has a small DIY element. It’s also a bit easier to assemble than other CR boxes as the slots have already been cut out of the base plate, and everything can be put together without the need for glue, tape, or other materials. Perhaps more helpful, the filters have already been chosen, and there is no need to shop around for the best price-performance filter.
Once assembled, the device takes the shape of quite a compact CR Box. On top of that, I must add that I think this device also looks a lot better than any traditional CR Box – at least any that I’ve ever made! While it still has an industrial look, it’s a device that could quite easily fit into a classroom, office, or room without attracting too much attention. While I value aesthetics much less than performance, I appreciate having a device that looks good, too – especially if it can blend in.
Once assembled, the device feels quite solid, and despite there being no adhesive or tape used in the assembly of the purifier, I feel confident lifting it and moving it without dislodging the pieces. With that said, I tend to lift the device from the bottom and hold the top down to ensure none of the pieces slide out from their intended positions.
On top of the purifier are four large fans connected to a controller that will allow you to adjust the speed of the device. These fans look almost identical to large PC fans, and they’re held in place by a wire bracket that also serves as an extra layer of protection to stop any children or animals from getting fingers or paws into the fans. That said, if you have the device around children, you may want to place it up higher so they can’t easily reach the fans.
That’s really all there is to the design of this device. It’s very simple, but it’s also affordable and performant. While some might miss the smart features and connectivity of more pricey air purifiers, the two types of devices cater to very different customers. Overall, I’m a fan of this straightforward approach, which reminds me of the SmartAir Sqair.
The AirFanta 3Pro uses four 140mm fans to push air through the filters. Characteristically, smaller fans tend to have higher-pitched sounds than larger fans and the AirFanta 3Pro sits somewhere in the middle as it uses medium-sized fans. If you have a desktop PC with a case fan (not the other fans, such as the higher-pitched CPU fan), you’ll likely already know what these fans sound like, as most desktop cases use 120mm or 140mm fans. This isn’t an unpleasant sound, but it is quite audible.
To see how loud the AirFanta 3Pro is, I conducted noise tests at 30cm and 2 metres with a sound level metre that measures in dBA (A-weighted decibel). dBA differs from traditional dB because it is adjusted for the human ear’s sensitivity to different frequencies. Low and very high frequencies are de-emphasized, mimicking how humans perceive loudness. In other words, it’s a better representation of the actual noise level than dB for a device such as an air purifier. However, I do want to note this as many other websites use dB, which will explain why my results are significantly different.
For further context, here are a few examples of the volumes of some noises in dBA. Obviously, these can vary, and especially with dBA, they will vary between different devices. However, they are rough examples:
10 dBA – Breathing or leaves rustling: Extremely quiet.
30 dBA – Whispering: Comparable to a quiet library.
40 dBA – Refrigerator hum: A typical low background noise.
50 dBA – Moderate rainfall: Light, soothing noise.
60 dBA – Normal conversation: The sound of talking at a close distance.
70 dBA – Vacuum cleaner: Considered moderate noise, can be annoying over time.
80 dBA – Heavy traffic or a loud alarm clock: Noise becomes uncomfortable after prolonged exposure.
As you can see, at the lowest speeds, the 3Pro doesn’t add much to the noise of most rooms, but at the highest speeds, it can sound almost as loud as a vacuum cleaner (provided you are close to it). This is a lot of variation, but I like how this device gives the user full control over speed and noise, allowing them to pick a good balance.
I think most people will have this device running on speed 2 or 3, and both sounds are very manageable at a distance. If you do want a short burst of cleaning, the device will be significantly louder, and that’s why I only recommend using the higher speeds when needed.
When it comes to power consumption, the device can go from very low power to relatively high power. Here is a list of the wattage and voltage at each fan speed:
6 – 33.2 watt – 12v
5 – 27.4 watt – 11v
4 – 18.9 watt – 9.3v
3 – 11.1 watt – 7.3v
2 – 4.7 watt – 4.8v
1 – 2.2 watt – 3.0v
I won’t dive into power costs here because those vary greatly depending on where you reside, but I hope these specifications can give some insights. What’s most impressive to me is how much range this device has, whether we are discussing volume or power draw. There is such a large range that you can choose exactly what setting works best for you and leave the device to it.
The AirFanta 3Pro costs $149 or $159 (USD) depending on whether you opt for the CE-certified or CARB-certified version (the CARB variant is the lower priced of the two). It’s surprising to see a different price on these two units, but I assume it’s due to extra costs, either with the CE certification or getting the device into Europe. Either way, if you’re in the U.S. (or any non-EU country), the CARB variant will work, and that’s the model I received.
In the box, you will get six panels to assemble the 3Pro. This includes four HEPA H11 filters, which, as per AirFanta, should be good to last 6-12 months, depending on air quality conditions. In most cases, I would assume these filters will last closer to 12 months, but those who experience severe wildfire seasons or whose homes are exposed to consistent year-round pollution may need to replace the filters more regularly.
When you need your first filter replacement, you can opt for the default H11 filters or H11 filters with activated carbon. Interestingly, it doesn’t seem you can choose the filters you get with the device initially. If you want activated carbon filters from the get-go, you must purchase the device alongside an extra pack of filters. The activated carbon filters will set you back $74.99 compared to the basic filters, which cost $54.
The filters aren’t cheap, but it’s important to remember that each filter replacement pack you order has four individual filters, which is a substantial amount of filter materials. It’s also important to note that, unfortunately, you will need to purchase official AirFanta filters as they are smaller than most square HEPA filters, and other filters will not fit on this device. I don’t think this is a big deal, as I appreciate the smaller form factor of this device over larger devices, and even four HEPA filters from other brands will not be cheap.
If we estimate that most users use each set of filters for around nine months, your yearly filter costs for non-activated carbon filters will be $67.5. On the other hand, if you opt for the extra VOC adsorption of the carbon filters, you are looking at an ongoing cost of just under $100 per year. This is in a similar price range to other equally performant air purifiers, and this device’s initial cost is also much lower.
While power cost also needs to be factored into the ongoing cost equation, that cost will vary significantly depending on your air purifier usage (hours, speed, etc) and location. However, regardless of usage patterns, you should plan to spend between $67 and $100 on replacement filters for this device every year.
Overall, I’ve been very happy with the AirFanta 3Pro. While it’s not a perfect air purifier – if one even exists – this is a fantastic device that balances many difficult factors. Ultimately, it comes in as an affordable air purifier that doesn’t skimp on performance. In fact, it has a higher CADR than many more (and much more) expensive air purifiers. Furthermore, it offers a wide range of speeds that allow the user to choose the ideal balance between speed and sound for the setting.
I’ve always been a fan of the CR box concept, but I think the AirFanta 3Pro takes this a step further and, due to this, will appeal to many more people. While I’ve never had an issue constructing CR boxes, I often have difficulty sourcing the parts (especially good filters), and I appreciate how the 3Pro can provide the same or better performance at a slightly higher price while also simplifying the shopping process for me.
Surprisingly, for a device of this size, it’s also quite portable, and you will be hard-pressed to find anything that provides a higher CADR than this device while also being ‘packable’. While I still wouldn’t go so far as to say it can fit in a backpack, it can definitely fit in a car or suitcase and is ideal for longer trips where you might be staying in hotels with unknown air quality. If, on the other hand, you want to use it around the house, it’s also a great device.
The biggest disadvantages I see with the AirFanta 3Pro are the sound and the design. There’s no denying that while the device is powerful, it’s also loud at its higher speeds. While this isn’t unusual for an air purifier, it is worth noting that you probably won’t want to run this device at its higher speeds unless necessary. I usually find myself using speed 2 or 3, which is the sweet spot for most users. On the upside, the lower speeds are almost silent, and although they significantly diminish performance, they are good for users who are okay with constantly running the device.
The design may also bug some users. While I don’t mind (and actually like) the device’s industrial design, I know some people don’t use CR boxes due to the design. If you don’t like the look of CR boxes, the chances are you also won’t like the design of this device. With that said, this design allows this device to have such a good price-to-performance ratio, and I think many potential customers will appreciate this more.
Overall, the AirFanta 3Pro is a cost-effective air purifier that should be on your radar – especially if price is a concern. If you’ve tried the 3Pro, I would love to hear your thoughts, so please feel free to use the comments section below! Furthermore, if you have any remaining questions, please don’t hesitate to as,k and I will do my best to reply. Thank you for reading.
Pros:
High CADR (413 cfm) for effective air purification
Affordable compared to similar high-performance devices
Pre-assembled CR box design simplifies setup
Portable and compact for travel use
Certified for safety (UL507, CE-EMC, FCC, CARB)
Cons:
Loud at higher speeds
Design may not appeal to all users (industrial look)
Limited to proprietary filters, increasing costs
No activated carbon filters included in basic kit