Dust Mask, Amazer Tec Activated Carbon Dustproof Mask, 2 pcs Cotton mask with 4 Extra Carbon Filters for Pollen Allergy Woodworking Mowing Running Cycling Outdoor Activities(Black) Dust Mask with Filters made of soft cotton material, breathable, washable and reusable. Please choose fulfill by amazon, other new seller may not deliver your products in time or never sent out products. ADJUSTABLE: The ear loop of our cotton face mask is adjustable, One size fits most. New Lab tested filtration technology filters over 95percent of pollution, apply to PM 2.5, haze, dust, pollen and and other protection. Adults cotton haze mask with unique cutting design, it can fit the face and better block foreign fine particles from entering. Package Includes: 2 pieces cotton masks; 4 pieces changeable filter