Why do many girls wear black masks when they go out? What is the reason?

In contrast to the skin, the black mask can make the skin look white. In addition, the gas generated during breathing may make the mask absorb aerosol and produce certain color changes. The black mask can cover up this color change well.

Many stars also like to wear black masks when they go out, which can cover their faces and prevent passers-by from recognizing themselves. Black masks can actually make a person's eyes look brighter and better. Maybe this is why many girls like to wear black masks.

1, the wearing time should not be too long. If you wear a mask for a long time, it will make the nasal mucosa 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 circumstances, such as crowded places with poor ventilation. Of course, walking in the wild, masks can also prevent wind, sand and cold, or move in an air polluted environment. It is necessary to wear masks, but the time should not be too long.

2. The outer layer of the mask often accumulates dust, bacteria and other substances harmful to the human body, while the inner layer is responsible for blocking exhaled bacteria and saliva. , so the two sides can't be used interchangeably, or the dirt from the outer layer will directly attach to the face, which will be inhaled into the human body and become the source of infection.