• ✅ 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.