N95 masks provided near complete protection against high viral aerosol loads at close range
N95 masks work!
Aug. 31, 2022 12:36am
📍N95 MASKS WORK—"We found combination of a #N95 mask that passed a quantitative fit-test & portable #HEPA filter **provided near complete protection** against high viral aerosol loads at close range for prolonged periods of time"—while surgical did not.
https://academic.oup.com/jid/article/226/2/199/6582941?login=false
Damning—“Criti…
