Debrief me anti-dust pollution mouth cover has 3 layers + extra filters. Layers total 5 layers for purification breathing air, works like an ever-vigilant protector in a heavy air polluted environment, best for running, cycling, marathons, Travel – aeroplane, public areas, outdoors, crafts and gardening and more.
Made of cotton, dustproof, non-toxic, non-Irritating, soft and comfortable. Save yourself in Indoor and outdoor from sand, vehicle exhaust, blowing sand, construction dust, ash, pollen, pet dander, and many more. Best fit with adjustable ear loops, 100% cotton fabric. Windproof, breathable, easy to wear, comfort guarantee, protection guarantee against any air born pollution.