Precautions for wearing masks

Release time:

2024-04-22

From the perspective of human physiological structure, because the blood circulation of human nasal mucosa is very strong, the passage in the nasal cavity is very tortuous, and the nasal hair constitutes a "barrier" of filtration ". When air is drawn into the nostrils, the airflow forms a vortex in the tortuous passage, warming the airflow drawn into the nasal cavity. Some tests have shown that when cold air at minus 7°C is inhaled into the lungs through the nasal cavity, the airflow has been heated to 28.8°C, which is very close to the temperature of the human body.

Use duration
From the perspective of human physiological structure, because the blood circulation of human nasal mucosa is very strong, the passage in the nasal cavity is very tortuous, and the nasal hair constitutes a "barrier" of filtration ". When air is drawn into the nostrils, the airflow forms a vortex in the tortuous passage, warming the airflow drawn into the nasal cavity. Some tests have shown that when cold air at minus 7°C is inhaled into the lungs through the nasal cavity, 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, the nasal mucosa will become fragile and lose the original physiological function of the nasal cavity, so you can't wear a mask for a long time. Masks can only be worn in special environments, such as in a place with a large number of people and no air circulation. Of course, walking in the wild, in order to resist wind and sand and cold, or in an environment with air pollution, you need to wear a mask, but the time should not be too long. In addition, in the flu season, go to public places where there may be a large number of pathogenic bacteria, you should also wear a mask. Wearing a mask is only one of the ways to prevent respiratory infectious diseases. The most important thing is to maintain good living 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 and saliva. Therefore, the two sides can not be used alternately, otherwise the outer layer of dirt will be inhaled into the human body when it is directly close to the face and become the source of infection. When the mask is not worn, it should be folded and placed in a clean envelope, and the side close to the nose and mouth should be folded inward. Do not tuck it into your pocket or hang it around your neck.

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