- Premium Material: Made of activated carbon and non-woven filter cloth with 5-layer filter system to effectively keep away from PM 2.5, pollution, gases, odors, dust, smog, car exhaust, pollen, allergies, germs and more
- Effective Protection: The 5 Layers are respectively spun-bonded fabric, high-efficiency filter fabric, Activated carbon, high-efficiency filter fabric, spun-bonded fabric. Test results under laboratory conditions show that it can remove at least 99% of non-oil based particles
- Use: Enhance your protection with our pollution mask filter replacement against nasty substances. Suitable for running, cycling, hiking, skiing, and other outdoor activities, it also can be used in hazy days.