1. HEALTHY BREATHING - Activated carbon filters isolate 97% of dust, chemicals, vapors and particles. 2. SMOOTH BREATHING - Unique ventilation design, excellent permeability, good air breathing valve, lower air resistance, even breathing. 3. LIGHTWEIGHT MATERIAL - Synthetic polypropylene material to prevent allergies. 4. High quality filter object: vehicle and industrial exhaust, dust, pollen, floating dust, es, germs, PM2.5, H7N9 etc. 5. Dual adjustable headband straps on the cheeks allow an optimal fit. 6. A non-metal adjustable nose clip for easy adjustment to the nose. 7. Easy and convenient to use in damp environments. Technical specifications: Item type: masks color white New with tags: A brand new unused and unworn product in the original packaging sold in individuals.