3d mask is the meaning of three-dimensional protective mask. Three-dimensional protective masks can effectively filter airborne viruses, bacteria, dust mites, haze, volatile chemicals and so on. And three-dimensional protective masks can be cleaned, wash and put in a cool place to dry.
The mask is a hygiene product, generally refers to wear in the nose and mouth parts used to filter the air into the nose and mouth, in order to block harmful gases, odors, droplets, viruses, and other substances to the role of gauze or paper, etc. made.