Material: Made from cotton, breathable, windproof, sweat-absorption, comfortable and skin-friendly. Besides, comes with breathing valve, it can dissipate heat, make the mask more breathable. Humanized design. Ergonomic cut on nose and adjustable and elastic ear belt can fit face closely. It is enough to cover nose, mount, face. Reusable, economic-friendly and economical. Unlike other disposable masks, this mount mask is washable and can be used repeatedly. Not only it doesn’t make harmful effect on environment, but it is economical. Excellent filter ability and practical. The interior of the mask have a layer of melted cloth, which have powerful filter ability, can filter much of harmful substance. What’s more, equipped with two pieces of non woven active carbon, which is inserted into mask, it can filter contaminants like PM2.5, haze, dust, automobile exhaust, formaldehyde, pollen. Our mask, for you, is a necessity to outdoor, travel and other public places.