The pandemic propelled 3M’s N95 to international stardom. What’s next?
Few objects symbolize the pandemic as well as the N95. Impossible to find until they were ubiquitous, the double-strapped ...
Do Face Masks Work?
Five years after Donald Trump declared a national COVID emergency, here's what the research says about face masks.
Reason4d
Do Face Masks Work?
Masks are a big category: There are cloth masks, surgical masks, N95 respirators that block 95 percent of small particles. People use them both as source control—that is, to reduce the spread of ...
Mankato Free Press3d
The pandemic propelled 3M’s N95 to international stardom
Few objects symbolize the pandemic as well as the N95. Impossible to find until they were ubiquitous, the double-strapped respirator stamped with all those letters and numbers confined many faces ...