Each mask is made from 100% cotton and is soft, breathable and comfortable to wear. With two layers of fabric, they feature a slip opening to insert a disposable filter (sold separately). Soft elastic ear straps are easy to adjust. Mask is machine washable. Please note, mask helps reduce exposure to dust, allergens, germs and bodily fluids; however, mask is not a respirator and will not eliminate the risk of contracting disease or infection.