A review of 38 separate "studies" upon which anti-maskers falsely base their claim that "masks are useless"
Contrary to claims by anti-maskers, face masks do help reduce COVID spread
Masks, molecules, COVID-19, and their relative size
If a mask blocks carbon dioxide, it will be fantastic against COVID-19. And a mask doesn't have to be able to block individual viruses to reduce transmission.
The Daedalnexus 