The best evidence shows no effect of N95s on respiratory viral infection, even among healthcare workers who know how to wear N95s properly.

Yet we are told by "experts" that we should mask up using N95s for the next "wave" of COVID19.

This is hygiene theater.

Do not comply. pic.twitter.com/gKqrW0RxeA

— Kevin Bass PhD MS (@kevinnbass) September 1, 2023