How about Hangkang Yiheng Mask?

very good

Hengpin mask is a regular brand, legally registered and compliant enterprise with medical device registration qualification. Consumers can also go to the website of the Food and Drug Administration to inquire about the company's product standards, which meet the production standards. The price of his mask is relatively close to the people and cost-effective.

Don't wear a mask continuously.

Some people wear the same mask for two or three days, which is wrong. Because after wearing a mask for a period of time, the outside will be covered with dust, bacteria and other pollutants in the air, while the inside will be covered with water vapor and saliva with bacteria and viruses. If the mask is not cleaned or inverted for several days, it is easy to cause secondary pollution, which is not good for human health.

You can't wear a mask for a long time.

The nose can adjust the inhaled air close to the body temperature, which is a natural regulation mechanism of the human body and can be enhanced through exercise, making people cold-resistant.

The ability has improved. If you wear a mask for a long time, this physiological function will lose the opportunity to exercise, resulting in a decline in the warmth retention ability of the nasal mucosa. Cold air will stimulate the nasal mucosa, and you will catch a cold if you are not careful. It is recommended not to wear for more than 30 minutes at a time. You can take it off and get some air before wearing it.

Don't put the mask in the bag after wearing it.

Many people like to put their used masks in pockets or handbags, but they don't know that putting money in pockets and handbags often leads to the pollution of masks by pathogenic microorganisms, and it is easy to get sick when they are worn again.