With the development of society and the improvement of science and technology, the pollution of the natural environment is becoming more and more serious. More and more people wear masks when they go out. At present people usually wear surgical masks. Then how do surgical masks prevent dust, the following sub-series provide a brief introduction for users. I hope to help you.

Generally speaking, in order to effectively protect the body, there are certain requirements on the size of the mask covering the mouth and nose so that people can breathe freely. In general, the size of adult surgical masks is 18mm by 9mm, while the size of children's surgical masks is 15mm by 9mm.

The disposable medical mask is made of non-woven fabric. This material does not require knitting. It's made of fibers that are bonded together.

Disposable surgical masks are effective in preventing fine dust in the air, especially when the particles are less than 2.5 microns in diameter, which can enter directly into the Alveoli. It's very dangerous to the human body. Disposable surgical masks block off the dust layer by layer as it passes through the gauze, which absorbs it and allows fresh air into the respiratory system. So wear a mask in smoggy weather.