2 ms·
> So if your filter is 95% efficient at 0.3 μm, it's even better at bigger and smaller sizes. The SARS-CoV-2 virus is 0.05 to 0.2 μm in diameter, so an N95 mask
by weaksauce 6y ago
> So if your filter is 95% efficient at 0.3 μm, it's even better at bigger and smaller sizes. The SARS-CoV-2 virus is 0.05 to 0.2 μm in diameter, so an N95 mask will be substantially better than 95% for coronavirus.
small nit. the corona virus gloms onto other particles of differing sizes in an aerosol though it's not super clear what size they are.
> The size of infective airborne viral particles is not well known and the aerosol transmission of viral diseases is currently debated in the literature (Roy and Milton, 2004; Tellier, 2006).
https://academic.oup.com/annweh/article/52/3/177/312528 https://academic.oup.com/annweh/article/52/3/177/312528