Please note that it is still a critical period for epidemic prevention and control. Please wear a mask consciously, go out as little as possible and don't play together. 2. Pay attention to epidemic prevention and control, and it is most important to accompany your family! To fight the epidemic, you must wear a mask when you go out.

Mask is a kind of sanitary product, which is usually worn on the nose and mouth to filter the air entering the nose and mouth to block harmful gases, smells, droplets, viruses and other substances. It is made of gauze or paper.

Masks have a certain filtering effect on the air entering the lungs. Wearing a mask has a very good effect when respiratory infectious diseases are prevalent and when working in polluted environments such as dust. Masks can be divided into air filtration masks and air supply masks.

On 2002114, the State Council Press Office held a press conference to introduce 224.2 billion masks exported by China in 2020. On February 1 1, the General Administration of Market Supervision and other four departments jointly deployed and deployed again to strengthen the quality supervision of masks.