Suitable for install in general double air breathing valve activated carbon dust cycling face cover.

Help healthy breathing: Replaceable active carbon filters isolate up to 99% of dust, pollen, hazardous chemicals, fumes, heavy metal particles etc. We will help you breath in a cleaner, healthier way.

Enough to use and replace: 20 Pcs activated carbon filters suitable for home and professional use, indoor or outdoor, for cleaning actives.

Designed to protect: against particles free of oil, iron ore, flour pet hair and other solid substances free of oil.