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?
“RESULTS: The fan ON was almost as good as wearing a well-fitting N95 (vs fan OFF):
95%, 94%, and 96% REDUCTIONS seen with aerosol measurements when mannequin was UNDERNEATH the fan.”