A Brief History

"Then he told me to pull the mask up and cover my nose to prevent flying flowers from getting into my nostril.china was the first country in the world to use it. In ancient times, people at court began to cover their mouths and noses with silk scarves to prevent dust and air pollution, for example, "Li Shu" contains: "cover the mouth, fear of touching people, " "Mencius from Lou" notes: "The West is unclean, then people all cover the nose, " hands or sleeves to cover the nose is very unhygienic, also inconvenient to do other things, then someone covered his nose and mouth with a piece of silk cloth. In his book, The Travels of Marco Polo, the Marco Polo chronicled his 17 years in China. One of them said, "in the palace of the Yuan Dynasty, the people who offered food covered their mouths and noses with silk cloth to give them breath without touching the food. ". At the beginning of the 13th century, masks appeared only in the Chinese court. To keep their breath from reaching the emperor's food, waiters used a silk and gold thread scarf to make masks. By the end of the 19th century, masks had begun to be used in medical care. German pathologist Ledeč began advising health care workers to use gauze masks to prevent bacterial infections in the early 20th century, when masks first became a staple of public life. The Spanish flu, which has swept the world, has claimed the lives of some 50m people, with the general population being asked to defend themselves against the virus with face masks. In the mid to late 20th century, the number of large-scale use of face masks was remarkably high. Masks have played an important role in preventing and stopping the spread of the virus in several of the world's most recorded pandemics. In March 1897, the German Meidechi introduced a method of covering the mouth and nose with gauze to prevent the invasion of germs. Later, someone made a six-layer Gauze mask, sewn on the collar, use when turned over to cover the nose and mouth can be. However, this kind of mask has to be hand-held, extremely inconvenient. Then someone came up with the idea of a band around the ear, which is what people use today. In 1910, when the plague broke out in Harbin, China, Dr. Wu Lien-teh, then Deputy Superintendent of the Beiyang Army Medical College, invented the Wu's mask. In 2003, the use and popularization of face masks reached a new high tide, a "SARS" almost sold out of face masks for a time, the door of major pharmacies in long lines, people scramble to buy face masks. In 2009, after the bird flu of 2004, the H1N1 flu made the face mask army appear again in the world's major news media. The emergence of the concept of PM2.5 air hazards in 2013 has drawn public attention to the problem of air pollution, making respirators and other protective products popular during smoggy weather. On February 7,2020, more than 30 health care workers and volunteers at the disinfection and supply center of the Second Affiliated Hospital of Xi'an Jiaotong University made masks using materials such as non woven medical packaging, water absorbent paper for apparatus and N95 meltblown filter cloth.