Brand N/A Model C1BD2003 Color White Material Cotton Quantity 5 Functions Suitable for architecture chemical industry furniture electronics and other multi-dust dangerous environment; It also designed to withstand dust storms Features The lining is made of pure cotton it doesn't cause any irritation; It different from common gauze face mask which only can filter dust this face mask have high technology adhesive material can absorb each harmful gas purify 0.28~0.35UM nitroso compound purification efficiency is 99%; Fit well with your face breathe easier; Washable and reusable Packing List 5 x Face masks