... , light, environment-friendly Non-irritating, breathable Prevent contamination Carbon Respirator mask with value1. Disposable, single-use 2. Economical, light, environment-friendly 3. Non ... protective working environment Material Nonwoven+Activated carbon+Meltblown+Nonwoven Size 14*13*5cm Style earloop& headphone Layer 4-ply Packing 20pcs/box, 400pcs/carton ...