Type: Skin Friendly Fabric, Cotton Inner, Soft and Breathable, Nonmedical 1.23 Oz. Szie: S, M, L. The sizes fit most persons. Constructed with high-quality polyester surface and soft cotton inner. Comfortable material will not rub your face, offering great softness. Breathable fabric. Perfect for everyday use or outdoor activities. Protects you from dust, pollen, cold, smog, vehicle exhaust and sandy air. Comes with one dust cover only, mask filters won't be included. These dust covers are not medical grade masks. Note: Dust mask is washable and reusable. You are able to insert the mask filter along the opening in the mask.