Product Details Disposable Medical Masks are made of three layers of 25 grams of non-woven fabric at least; the bridge of the nose is made of environmentally-friendly all-plastic strips, contains no metal, is equipped with breathability, and is particularly suitable for electronics factories and daily use. Disposable masks can prevent respiratory infections to a certain extent. The outer layer has waterproof function of preventing airborne particles, droplets, blood, body fluids, secretion droplets and etc. from entering the mask. The middle layer has a filtering function to block 95% of 5m particles;
