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Do you know the cold knowledge of masks?

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Do you know the cold knowledge of masks?
Latest company news about Do you know the cold knowledge of masks?

    Starting in early 2020, the COXID-19 began to sweep the world.Masks have become a standing substance in the home, and even difficult to buy.At this time, people realized the importance of masks, and the largest range of use since the invention of masks.Even if you use it every day, do you really understand i?

latest company news about Do you know the cold knowledge of masks?  0(figure 1)

     Masks, which first appeared in the sixth century BC, were applied to the religious activities of the ancient Persians.This religious person thinks that the person's breath is not clean, and they wrap their faces with cloth in the city where religious ceremonies are held.This is the source of the mask.

latest company news about Do you know the cold knowledge of masks?  1(figure 2)

    History moved forward to the 13th century China, when China was called the Yuan Dynasty.The person who serves the emperor's diet will wrap a cloth around his face in order not to contaminate the food.Marco Polo recorded this phenomenon in his travel notes.

latest company news about Do you know the cold knowledge of masks?  2(figure 3)

    But the mask in the strict sense was born at the end of the 19th century.German pathologist Ledch discovered that airborne bacteria can infect wounds, and the saliva sprayed by doctors in the operating room caused infections. This is the most powerful proof.Therefore, it is recommended that doctors wear masks made of gauze to cover the nose and nose during the operation.Eventually, the infection rate is greatly reduced. As a result, masks have gradually become popular in the European medical community.

latest company news about Do you know the cold knowledge of masks?  3(figure 4)

    Later, it has undergone many improvements, and this is the mask we are using now.

latest company news about Do you know the cold knowledge of masks?  4(figure 5)

    With the spread of the new coronavirus, masks not only block dust or smog, but also block the COVID-19 virus.Whether it is a disposable non-woven mask or a higher-grade N95 mask, they are all resistant to bacteria and erected a hard shield for our health.

latest company news about Do you know the cold knowledge of masks?  5

Pub Time : 2020-07-14 11:09:39 >> News list
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