Post by Nadica (She/Her) on Jul 19, 2024 22:46:51 GMT
How to Compare Air Cleaning Devices - Published Mar 1, 2023
Have you seen a device claim that 99.9% of particles are removed in 30 minutes? Is that better than what a portable HEPA filter could do? What if it said it gives you 40 air changes per hour? How do you compare these?
Often, the data that is given is not sufficient to determine if something is effective. Here is how you would need to determine it.
Content Warning: Math — logarithms and differential equations
Have you seen a device claim that 99.9% of particles are removed in 30 minutes? Is that better than what a portable HEPA filter could do? What if it said it gives you 40 air changes per hour? How do you compare these?
Often, the data that is given is not sufficient to determine if something is effective. Here is how you would need to determine it.
Content Warning: Math — logarithms and differential equations