?   A cotton cover is added to the face contact part to keep warm and sanitary more comfortable, which can be washed repeatedly Fit for people who always touch organic vapor, Benzene and its homologue, petrol, pesticide, acetone, carbon disulfide, ether and so on in agriculture, industry and scientific research units.  ?   Cartridge Material: Activated Carbon Our spray paint mask has an exhaust valve which helps to breathe easier and freely and also to release the Moisture and heat.   ?   Anti-dust Mask is a light-weight, comfortable, healthy and robust respirator mask Our products help provide face protection against painting, welding, flying articles, chemical, pharmaceutical, petrochemical, abatement, wood processing, metal working, automotive manufacturing, etc.  ?   Dual cartridge system can be replaced with different cartridges for acidic gases or other chemical vapors The soft Gel-Like nose and mouth cover will fit all users Designed to protect you from breathing in dust and fine particles.