How to Properly Wear a Face Mask. The CDC now advises everyone to wear a face mask in public to prevent the spread of COVID-19. Face masks should fit snugly on the face, secured by ear loops or ties. They should allow for unrestricted breathing. Cloth face masks should be able to be machine washed without damage. People with glasses may have an issue with masks fogging up their eyewear. To solve this, simply place a folded tissue inside the top of your mask. At this time, the CDC is recommending washable cloth masks, as medical-grade masks are in short supply