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• Time of issue:2020-09-02 18:44
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(Summary description)The correct way to wear a mask Usually the disposable masks we buy in pharmacies are medical general surgical masks, which have two sides, the darker side - the blue side faces outward, and the lighter side faces inward, close to our face. Not only that, the mask is also divided into upper and lower, the side with the metal strip inside that feels harder is the upper end, which is close to the bridge of the nose when worn. After understanding the basic structure of the mask, let's learn how to wear the mask correctly.  First, wash: First, wash your hands to avoid contamination of the inner surface of the mask by unclean hands;  Second, hang: the mask across the face on the mouth and nose, using both hands to hang the rope at both ends of the ear;  Third, pull: as shown in the figure below, both hands simultaneously pull the folds of the mask in the up and down direction, so that the mask can completely cover the mouth, nose and chin;  Fourth, pressure: Finally, use the index fingers of both hands to press the metal strips on both sides of the bridge of the nose, so that the upper end of the mask can be close to the bridge of the nose.  In addition, we need to remind you that: after wearing the mask, avoid frequent touching the mask to prevent reducing the protective effect; after taking off the mask, put it into a tape or paper bag, then put it into a covered garbage can and dispose of it, and wash your hands in time; do not reuse disposable masks. The correct way to wear the mask Precautions for masks Length of use From the point of view of human physiological structure, because the human nasal mucosa blood circulation is very vigorous, the nasal cavity channels and very tortuous, nasal hair structure a filtering "barrier". When the air is inhaled into the nostrils, the airflow forms a vortex in the winding channel, so that the airflow inhaled into the nasal cavity is heated. Tests have shown that when cold air at -7°C is inhaled into the lungs through the nose, the airflow has been heated to 28.8°C, which is very close to the temperature of the human body. If you wear a mask for a long time, it will make the nasal mucosa become fragile and lose the original physiological function of the nasal cavity, so you cannot wear a mask for a long time. The mask can only be worn in a special environment, such as in a crowded, air-deficient place. Of course, walking in the field, in order to resist the sand and cold, or in the environment with air pollution activities, it is necessary to wear a mask, but the time should not be too long. In addition, during the flu season, you should also wear a mask when going to public places where there may be a large number of pathogenic bacteria. Wearing a mask is only one of the ways to prevent respiratory infections, the most important thing is to maintain good habits. Cleaning and maintenance The outer layer of the mask often accumulates a lot of dust, bacteria and other dirt in the outside air, while the inner layer blocks the exhaled bacteria, saliva, therefore, the two sides can not be used alternately, otherwise the outer layer will be stained with dirt in the direct close to the face when inhaled into the body, and become a source of infection. When the mask is not worn, it should be folded into a clean envelope and folded inward on the side that is close to the nose and mouth, do not just stuff it into a pocket or hang it around the neck.