“We are concerned that the science of masks and respirators appears to have been misunderstood, and misinformation unwittingly perpetuated, by some of the very highest-level government advisors” ⬇️ #WearAMask#CovidIsntOver#LongCovidwww.bmj.com/content/386/...

Respirators outperform surgical masks; fit-testing is desirable but not essential