During the epidemic, 3ply face masksproduced by many mask manufacturers were mainly supplied to the government, and only a small number of masks went to the market. Many enterprises are resuming work, and each enterprise has to prepare masks, which is more than 20 times the number of employees, which increases the market demand.
Masks and masks are of different quality. Non-woven masks can be divided into three types, each of which is of different quality for different uses.
1, the first is a two layer mask, generally two layer mask is mainly used in food processing plants, it is no filtering melt-blown fabric, just two non-woven stitched together, its role is primarily to prevent the substance into the mouth in food, such as saliva, spraying, such as a cold case, it's heavy generally around 2 ~ 4.5 G.
2. The second kind is a three-layer mask, with a filter melt-blown cloth in the interlayer, which is suitable for use in medical structures, outdoor, dust factories and other places. It consists of a double layer of non-woven fabric + a middle layer of filter melt-blown cloth。
3.The third is a disposable four-layer activated carbon mask, which adds a layer of activated carbon paper on the premise of the original three-layer non-woven filter paper to better improve the ability of filtering dust and bacteria. This is the gray and black mask that you see. However, in general, wearing three layers of masks outdoors is enough, and wearing four layers is also completely acceptable.
With the opening of the new school year just around the corner, masks have become a necessity for children to go to school. China is the world's largest producer and consumer of masks. Although the epidemic has eased in China, wearing masks has become a necessary part of life.
Users need to pay attention to wear the appropriate time. Non-woven medical masks can be used for 6-8 hours, and should be replaced in time in the following cases: breathing difficulties, damaged or damaged masks, masks that cannot close to the face, masks that are contaminated (such as blood or droplets), masks that have been used in isolation wards or patients, smell, etc.
When using a medical or surgical mask, do not pinch the nose clip with one hand to prevent air leakage at the nose clip of the mask, reduce the protective effect, and keep the mask in good contact with the face.
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