There are three layers of masks, which are designed with hanging ears. The masks are non-toxic, tasteless and non-irritating. They can directly touch the skin and are easy to use. The non-woven fabric on the surface of the mask is a water-repellent non-woven fabric, which can effectively prevent, hinder, body fluids and splashes from entering the body through breathing; the middle layer is a meltblown fabric of ultra-fine fibers, which has high efficiency filtration efficiency and good air permeability. It can effectively filter harmful substances in the air while allowing the wearer to breathe freely; the innermost layer directly touches the skin and is a hydrophilic non-woven fabric that can absorb water vapor generated by breathing.