1.Made from sponge material, keep pollutants out while offering comfort thanks to built-in exhalation valves and soft and stretchy elastic loops. lightweight material, soft texture, comfortable to wear. Comes with filter valves, smooth breathing.
2. Built-in exhalation valve lets air in and keeps moisture out, allowing you to breathe more easily while keeping dust and other pollutants out. comfy elastic and wide ear loop allows you to wear these masks for long periods of time without irritation.
3. It is suitable for cycling, running, cycling, hiking, skiing, woodworking and other outdoor activities. The dustproof mask can be used for anti-dust, anti-vehicle exhaust, anti-pollen allergy, anti PM2.5 and haze day protection.
1. Easy to wear and they offer a superior level of protection over the paper masks, and Very comfortable for long periods oftime. washable, can be used repeatedly. Collapsible, you can carry it in your pocket and anywhere.
2. Can be cleaned several times, cleaning will not reduce the effect of dust blocking.