The main function of disposable medical masks is to isolate droplets or blood in the air, and also to isolate body fluids or other secretions in the air, and to absorb dust. It is a very good tool to protect the health of doctors.Disposable medical masks are divided into inner, middle and outer layers, gauze or general health cloth inner layer, the middle is a layer of ultra-fine melt-blown polypropylene fiber material, and the outer layer of polypropylene melt-blown non-woven material or film. Medical protective masks, such as micro aerosols with high penetration of viruses or harmful dust and strong hydrophobicity, are remarkable. A good overall filtering effect, the materials are non-toxic and harmless, and they are comfortable to wear and use. The price is $0.33/PC.