More flip flopping on masks – most people don’t know it but OSHA rules for N95 masks mandate no beards. And now this: Tight fit more important than a second mask to prevent COVID-19 spread ::

“However, even double-masking doesn’t compare to wearing an N-95 mask.”

Sounds like the researchers are starting to join the cloth mask denier community.

Note – the study never measured the actual spread of Covid-19.

By EdwardM