(Note that most people use “mask” and “respirator” interchangeably ... adjustable nose bridge and two headstraps. 3M’s Aura foldable N95 respirator has a three-panel design and is ...
N95 respirators get tested in a fit test lab at 3M Center in Maplewood ... The respirator — don’t call it a mask — was sold largely to industrial customers for decades.
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