Disposable civil maskAdopt non-woven gauze as the main raw material,Website:http://www.cngauze.com, made after cutting and sewing.Filtering tiny particles in the air, preventing the droplet,blood, body fluid, secreta,etc.Strong hydrophobic ventilation, filtering effect for tiny virus aerosol, or harmful dust obviously.Advantages:Smell free, high filtration,breathable comfortable.Three layer proof, ...