Wearing a mask to keep warm?

　　Use a mask to keep warm

　　In the cold winter, many people are fully armed. Many people think that wearing masks will keep them warmer. In fact, this is wrong.

　　Wearing a mask all day long will cause the mucous membrane of the nasal cavity and entire respiratory tract to be damaged. exercise , artificially weakening the ability to handle cold air, making it easier to catch a slight cold cold . Experts point out that if the air pollution is not serious, try not to wear a mask, and wear a scarf to expose your mouth and nose to keep breathing smooth.