PREMIUM QUALITY - 7 Layers of Protection, the most available in a soft, reusable, comfortable cotton design. Top layers (interior and exterior) are cotton weave, 4 layers of non-woven material and center layer is made of a filtering charcoal and bamboo blend weave (see picture detail). PROTECTION - 7 layers to protect you from airborne particles, dust, air pollution. Wear in traffic, on the worksite, on public transportation, while cleaning, take with you everywhere you go. ONE SIZE FITS MOST - this soft cotton layered protective face mask measures approximately 6.75 inches x 5.7 inches offering nose and mouth protection. WASHABLE - This cotton, anti-dust face mask is washable and reusable so you can use over and over again. Warm water. Line dry. PLEASE ADD YOUR REVIEW and let everyone in the community know how it worked for you. Brought to you by an American name you can trust, TravelNut, selling on Amazon for over 8 years. Order now.