IFJ_03-2020_PPE_3MN95

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N95 facemasks have a 95 percent efficiency
N95 facemasks have a 95 percent efficiency at filtering out contaminants down to a size of 0.3 microns. Photo courtesy of 3M

N95 facemasks have a 95 percent efficiency at filtering out contaminants down to a size of 0.3 microns. Photo courtesy of 3M