NIOSH-approved N95 respirators are the most protective type of face mask, according to the CDC. Doctors explain how to shop ...
N95 respirators get tested in a fit test lab at 3M Center in Maplewood. (Alex Kormann/The Minnesota Star Tribune) Few objects symbolize the pandemic as well as the N95. Impossible to find until ...
The large breathing chamber is also a great feature, as it exceeds NIOSH standards for ... two layers of breathable fabric. 3M is the largest manufacturer of N95 masks in the United States.