Reusable N95 KN95 Dust Mask

Mask is a kind of hygiene supplies, generally refers to wear in the mouth and nose position used to filter the air into the mouth and nose, in order to block harmful gases, smells, droplets in and out of the wearer's mouth and nose appliances, made of gauze or paper.
Masks have a certain filtering effect on the air into the lungs, in the respiratory tract infection epidemic, dust and other pollution in the environment, wearing masks hasa very good effect.Masks can be divided into air filter