Mask is a kind of sanitary article. It is usually worn at the mouth and nose to filter the air entering the mouth and nose, so as to prevent harmful gases, odors, droplets, viruses and other substances. It is made of gauze or paper and other materials.
Masks have a certain filtering effect on the air entering the lungs. Wearing a mask is very useful when working in the environment of dust and other pollution during the epidemic of respiratory diseases.
Masks can be divided into air filter masks and air supply masks.
On Jan 14, 2021, the State Council Information Office held a press conference to introduce that China will export 224.2 billion face masks in 2020.
In February and November, the State Administration for Market Regulation and other four departments jointly deployed and re-deployed and re-strengthened the in-depth supervision of mask quality.