• People assume that all face masks are equal while they are not. A cheap face mask will do nothing to protect you against coronavirus, but a good one will. Masks with ratings above N95 actually filter particles such as viruses.

    There is good material about ratings and respirators in general.
    https://www.youtube.com/watch?v=xOJF9-TNbAg&t=0s

About

Avatar for lynx @lynx started