100 Pcs Filters for Face Masks Activated Carbon PM2.5 Mask Filter Replacement for Men Women

Product Information: quantity: 100 pcs filters for face mask. Size: 4.7 x 3.2 inches, suit for most mouth cover inside with filter slot. Soft Material : Our mask filters are skin friendly, breathable and comfortable to wear. Great for Indoor and Outdoor Activities: You can use pm2.5 mask filter when you are shopping, visiting family, cycling, walking, hiking, jogging, running, skateboarding and scooting. A good helper to keep your health. One-time use: Filter face mask is a disposable product, usually replaced once a week, if there are any detailed stains or dust, it should be replaced in time.