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Face Mask Type: KN95 Respirator Mask Material/Fabric: 5 ply (100% new material) 1st ply: 50g leak proof Non-Woven Fabric 2nd ply: 40g Ethylene-Propylene Side By Side 3rd ply: 25g High Density Fliter Layer 4th ply: 25g High Density Fliter Layer 5th ply: 20g Direct Contact Skin Layer Feature: High BFE/PFE, Adjustable nose piece, Elastic earloop,5 ply material Color: White Size :For adults: 16×11cm Weight:2.9-3.2g/pc