Brief introduction of mask:

Mask is a sanitary and epidemic prevention 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.

History of mask development:

Jin Yi's Chasing the Old Horse: "At this time, he told me to pull up the mask and cover my nose to prevent flying flowers from getting into my nostrils."

China is the first country in the world to use masks. In ancient times, in order to prevent dust and respiratory pollution, people in the court began to cover their mouths and noses with scarves. For example, in Li Shu, "cover your mouth for fear that gas will touch people." "Mencius Li Lou" Note: "If the calligraphy is unclean, everyone will cover his nose." It is very unsanitary to cover your nose with your hands or sleeves, and it is inconvenient to do other things. Later, some people covered their mouths and noses with a piece of silk.

Kyle Poirot described his 17-year experience of living in China in his book The Travels of Marco Polo. One of them said, "In the palaces of the Yuan Dynasty, people who offered food covered their mouths and noses with silk to let them breathe and not touch the food." This silk cloth covering the nose and mouth is also the original mask.