Efficient Filtration, High Durability, 5 Layers of Protection, Activated Carbon Filters Soft inner cotton fabric, a comfortable mask experience, sleek design, all helmet compatibility, exhale valves Adjustable nose clip, head loop, O-type ring and adjustable grip ensures perfect seal and prevents spectacles fogging Medical grade PM2.5 paper filter, Medical grade PM2.5 cotton filter Do not Wash, Comes with Carrying Pouch, FREE Home Delivery