What level of air filtration (ACH) is equivalent to an N95 respirator?
What level of air filtration (ACH) is equivalent to an N95 respirator?
What level of air filtration (ACH) is equivalent to an N95 respirator?
Vivian (@suchnerve) on X
“eureka!
finally found numbers on how many air purifiers it takes to approximate the protection of an N95 — the magic number is apparently
⭐️ 12 air changes per hour ⭐️
which means you can calculate the CADR you need by measuring the volume of the room and using the ACH formula”
A conventional air purifier (eg. AirFanta 3Pro) typically requires three air changes to reduce the airborne viral load by 95%. In contrast, an N95 mask can achieve the same level of reduction instantly. While air purifiers are effective over time, they don’t provide immediate…
“A conventional air purifier (eg. AirFanta 3Pro) typically requires three air changes to reduce the airborne viral load by 95%. In contrast, an N95 mask can achieve the same level of reduction instantly. While air purifiers are effective over time, they don’t provide immediate protection. This is why you should still wear a mask in a shared space, even if there’s an air purifier running.”