Non-woven, Active Charcoal Cloth.
50 pcs mask filter,Replaceable Filters for face mask, PM2.5 standard with 5 layers,This product does not include masks,The picture just shows how to use it
Suit for all mouth mask insided with fliter slot
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.
Filter Material: 2 * Anti-sticking cloth, 1 * Filter cloth, 1 * Activated Carbon and 1 * Efficient filter cloth as in picture
PM 2.5, best to protect your mouth and face from Dust,Haze,Allergies, Smoke, Pollution, Ash, Pollen, Gardening, Crafts, etc.