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An N95 mask or N95 respirator is a particulatefiltering facepiece respirator that meets the U.S. It is produced by melt blowing and forms the inner filtration layer that filters out hazardous particles. NIOSH recommends that during shortages N95 respirators may be used up to five times without cleaning them as long as
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Apr 2020 Yes even if you don 39t include a soft seal component the mask will be at least 4 layers and a soft seal makes it 5. The outflow valve for when