40pcs Adults Size Adaptive Activated Carbon Fabric Filtration 5-Layer PM2.5 Filter Pad Insert Value Pack DIY Craft Anti-Dust Anti-Haze Anti-Pollution for Outdoor Activities for Men Women

✅ 40-pack adult size filters with adaptive activated-carbon 5-layer filtration system to effectively filter fine particulate matter from surrounding air.

✅ Compatible with reusable and washable anti-pollution, anti-dust, anti-haze PM2.5 masks. Filter measures 4.6” x 3.2”. Masks are not included.

✅ Constructed from high-quality nonwoven fabric, meltblown cotton and activated carbon fabric. Provide multiple protection and good ventilation.

✅ Easy to use: Insert one filter pad into the back pocket of the mask and defend yourself against PM2.5 and a range of airborne contaminants.

✅ Replace filter pads at least once a day. Filters are disposable and cannot be reused.