How to properly wear two masks — and other mask-fitting tips following recent CDC advice
Studies have found placing a sleeve made of sheer nylon hosiery material around the neck and pulling it up over either a cloth or surgical mask significantly improved the wearer's protection. - Jemal R. Brinson/TNS

New mask advice from the Centers for Disease Control and Prevention — connected with a new study — focuses on making sure masks fit correctly to better prevent the spread of COVID-19. The CDC studied whether wearing two masks provided more protection than one and found that it did. The researchers found that wearing one mask — surgical or cloth — blocked about 40% of the particles coming toward the head that was breathing in. When a cloth mask was worn on top of a surgical mask, about 80% were blocked. Here is a look at the CDC’s advice and some tips on how to mask properly. DOUBLE MASK What t...