Scarves are mostly made of wool, rabbit hair and blended wool. Fiber is easy to fall off, and it is easy to absorb a lot of dust and bacteria if it is not cleaned frequently. If you cover your nose and mouth with a scarf, falling fibers and dust can easily enter the human body with breathing, causing respiratory diseases. So wearing a scarf in winter, it is best not to cover your mouth and nose.
"Scarves can effectively prevent dust and can't cope with bacteria. Some people catch a cold and like to wrap their noses and mouths with scarves to keep warm. Then they found that colds are not always cured. It is very likely that bacteria are attached to the scarf, leading to recurrent diseases. " Dr. Bai said that when the scarf is used as a mask, the mouth is often in a moist state, and harmful substances such as pathogenic microorganisms, bacteria and dust are easy to accumulate on the scarf and enter the respiratory tract, which is easy to affect health.