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 ...
If N95 masks are not available, the CDC recommends using a well-fitting mask made of at least two layers of breathable fabric. 3M is the largest manufacturer of N95 masks in the United States.
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