Material: polyesterPackage includes: 1 mask + 2 replaceable protective carbon filters with 5 layers, M-shaped nose clip.Very soft, breathable, water-repellent, washable, adjustable elasticity with buckle, you can change the length according to your face contours, to prevent leaving marks on your face after you take off. Protect your mouth and face from dust, cold, dust, pollen, allergies, fog and haze, exhaust emissions, passive smoking, etc.Suitable for cycling, camping, running, traveling, climbing and everyday use.Washing Instructions: It is recommended to hand wash, not bleach.