PM 2.5 Vs N95 Vs N99: What's The Best Face Mask for Me ...
Nov 24, 2020·PM 2.5 mask (cloth pocket with replaceable activated carbon filter inserts) may work at some level, but we don’t recommended it because of insufficient data. N95 masks are tighter than surgical masks (loose fitting). N95 masks aren’t tailored for kids or adults with facial hair