【5-Layer Protection】 Efficient active carbon filters isolate up to 99-percent of dust, ideal to protect your mouth and face from Dust, Haze, Allergies, Smoke, Pollution, Ash, Pollen, hazardous chemicals, heavy metal particles etc.
【Safety protection】The filter provide comfortable protection for people. Suggest replace the filters every week of uses for the best effect. And it's kin-friendly, no burr and comfortable to wear.
【Reasonable size】The filter size is about 12cm x 8cm, which is compatible with most dust covers and easy to use or replace the original dust cover.
【Easy Installation】The installation steps for this activated carbon replaceable filters are very simple. Just put it in the filter opening.
【Used widely】Widely Usage the activated carbon filter is perfect for gardening, running, cycling, travel, household, schools, and other outdoor activities etc.
Package Contents: 20PCSx Filter PM2.5 Activated Carbon Filter FaceMask Breathing for Woodworking, Mowing, Sanding, Running, Cycling