This comfortable, reusable and machine washable fabric mask is a great way to help protect against allergens, germs and pollution as well as the common cold, seasonal allergies, and breathing in smog. You can even use it as a room-darkening sleep mask to help improve the quantity and quality of your sleep. Each 2-ply mask features a pocket inside for an optional carbon filter (#55330 sold separately) that provides extra protection. The comfortable masks are adjustable and have stretch elastic ear loops for a custom fit. Machine wash. Cotton. Choose: Red Paisley, Navy, Blue Paisley, Red or Green. This item is not returnable.