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How to choose and wear masks correctly?

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How to choose and wear masks correctly?

——How to choose a mask? ——

There are three kinds of common masks in life: ordinary cotton mask, disposable mask (such as medical surgical mask) and N95 anti haze mask.

1. Ordinary cotton mask: the material may be cotton cloth, gauze, wool, canvas and velvet, etc., but the material itself is not dense enough to prevent infection. Therefore, it is suggested that we do not take activated carbon masks, sponge masks, cotton masks.

2. Disposable mask (such as medical surgical mask): it can prevent respiratory tract infection to a certain extent, but cannot prevent haze. Please note that it is a medical surgical mask, not an ordinary protective cleaning mask.

3. N95 mask: can effectively prevent respiratory tract infection, can prevent haze, try to choose N95 mask without breathing valve.

The results of meta-analysis showed that there was no significant difference between N95 protective mask and medical surgical mask in the prevention of infectious acute respiratory infection in clinical environment. But it also said that N95 masks are better sealed. In other words, for the purpose of self-protection and reducing the risk of respiratory tract infection, wearing the latter two kinds of masks (medical surgical mask, N95 mask) can be used. You can choose according to your personal needs and economic conditions.

It is necessary to wear a mask, and it must be worn correctly.


Next, we will introduce in detail how to wear these two kinds of masks.

——How to wear disposable mask correctly? ——

According to who interim guidelines for the prevention and control of infectious epidemics and pandemic acute respiratory diseases in health care, it is recommended that:

1. Carefully cover the nose and mouth with a mask and fasten it to reduce the gap between the face and the mask as much as possible;

2. Avoid touching the mask when using it - after touching the used mask, for example, when removing the mask, wash hands with soapy water or alcohol hand sanitizer;

3. Replace the mask with a new clean and dry mask when it is damp or contaminated with moisture;

4. Do not reuse disposable masks. Disposable masks should be discarded after each use and disposed immediately after removal.

The specific operation steps are as follows:

The first step is to distinguish the pros and cons from the top and bottom

The mask is divided into front and back, upper and lower. The color of the front is darker, and the color of the back is lighter. The place circled in red is the top, and there is a metal strip in the nose.

Step two, wash your hands

You need to wash your hands before wearing the mask, because the mask is relatively sterile. If you touch the mask if your hands are dirty, you will rub the dirty things on your hands on the mask, and the mask will be white.

Step three, put it on

Make sure the back of the mask is facing inward and one end of the metal strip is facing up. Hang the rope at both ends over your ears.

The fourth step is to press and stretch

Press the metal strips on both sides of the bridge of the nose with both hands to make the upper end of the mask close to the bridge of the nose, and then stretch the mask downward to avoid wrinkles and better cover the nose and mouth.

Correct wearing method can avoid the gas from both sides of the nose, so as to play the filtering and ventilation function of the mask, protect yourself and protect others.

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