Many consumers wear masks when they travel, but many consumers wear masks incorrectly. I believe you don’t believe it. The following editor of disposable medical masks briefly introduces consumers to wear masks. Wash your hands before and after wearing the mask; keep the mask close to your face: the colored side of the mask is facing out, and the metal side is facing up. Tighten the power cord or wrap the rubber band around the ears to make the mask close to the face; the mask should completely cover the mouth, nose and chin; press the metal sheet of the mask along the sides of the nose to make the mask close to the face. After wearing a mask, avoid touching the mask to reduce its protective effect; if you have to touch the mask, please wash your hands before touching it. When removing the mask, avoid touching the outer part of the mask because it may be contaminated by bacteria. After removing the mask, put it in a tape or paper bag, and then discard it in a trash can with a lid. Change the mask at least once a day. If the mask is damaged or soiled, replace it immediately.