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N95 mask

N95 masks are one of nine masks certified by the NIOSH (National Institute for Occupational Safety and Health) for particulate matter. N95 is not a specific product name, as long as it meets the N95 standard and passes the NIOSH review, it can be called N95 mask, and can filter particles with aerodynamic diameter of 0.075 m±0.020 m with efficiency of more than 95%.