1 Pack Cool Breathing Dustproof Riding shield with 5 Carbon Filters Adjustable Anti Dust Face Air Filter Cycling shield for Cycling Running Training Outdoor Activities Features and Occasion: -The dust shield with high-grade non-woven fabric,activated carbon,filter cotton,the face shield filters out 99% of exhaust, pollen, smoke, dust, particles and fumes. -This adjustable one can fit perfectly on your nose and mouth, to meet the different needs of different people. -The respiratory valve can be opened or closed automatically according to your needs. -Adjustable nose clip and velcro design preventing the breathing shield from slipping. -The mesh dust shield shell and valves can be washed when they get dirty, the filter is replaceable. -The Anti Dust shield is perfect for all outdoor and indoor sports, such as running, walking, cycling, motorcycling, skiing, paintball, lawn mowing, on public transport and other activities. -The package includes: 1 pieces shield, 5 pieces replaceable filters.