These Blue Face Masks 3ply (tie back), made from non-woven fabric, making it comfortable to use. They are resistant against dust, have a deodorant effect, and a powerful filtration of air, keeping germs and contaminations away from your air track system. Can effectively separate the harmful contamination and gas from in the air, safeguard human health and minimises other pollution in industries. These masks are disposable, elasticated and one size is able to fit all.