• Size Measurement: Carbon filters size:4.72 x 3.15 inches, compatible with most dust, easy to insert or replace the original one
• High-quality materials: Made of activated carbon and non-woven melt-blown filter cloth, 5 layers filter system effectively keep away from a range of airborne contaminants
• Safety protection: Ideal to protect your mouth and face from Dust, Haze, Allergies, Pollution, Ash, Pollen, Gardening, Crafts, Vehicle Exhaust, Woodwork, Pollen Allergies, and Fumes
• Easy to use: just put it in the filter opening. 1. Filter inserts can not be cleaned and should be replaced every day. 2. When a film or sticky sediment stains emerge, please replace the filter
• Activated Carbon PM2.5 Filters: 100% brand new and high quality. It's compatible with the majority of mouth cover available in the market.

These reusable face masks are not medical devices or personal protective equipment (PPE)