Dust-proof Mask: Anti dust face mask made from Non-woven, quality filters layer, double air breathing valve, air resistance is smaller, smooth breathing.
Air Filtration Mask: Constructed of Five Layers Filter, tour mask can block large particles,even 0.03 micron particles, so that wearing more sanitary.
One Size Fits Most Women and Men: Ergonomic design makes the mask fit in place, not easy to fall, soft and comfortable even after you wear it all day, suitable for both men and women.
Reusable & Washable & Replaceable: The mesh dust mask shell and valves can be washed when they get dirty,the filters is replaceable.
Functional Face Mask: This anti dust mask is ideal for both women and men, suitable for cycling, camping, running, travel, climbing and daily use. Protects you from polluted air, vehicle exhaust, sunlight,and etc.