Introduction to Masks
Masks are a type of hygiene and epidemic prevention product. Generally worn on the mouth and nose, it filters the air entering the mouth and nose to block harmful gases, odors, droplets, viruses, and other substances. It is made of materials such as gauze or paper.. Masks have a certain filtering effect on the air entering the lungs. Wearing a mask has a very good effect when working in polluted environments such as dust during the outbreak of respiratory infectious diseases. Masks can be divided into air filtration masks and air supply masks. On January 14, 2021, the State Council Information Office held a press conference to introduce the 224.2 billion masks exported by China in 2020. On February 11, the State Administration for Market Regulation and four other departments jointly deployed and strengthened the further promotion of mask quality supervision work.
