While the retailer has many types of masks available to buy online, the Centers for Disease Control and Prevention recommends covering your mouth and nose with a cloth face mask whenever you need to be around other people (like at the grocery store, for example). For the best protection, the CDC also advises wearing face masks that are made of multiple layers of tightly woven cotton. RELATED: Not All Cloth Face Masks Come With Filters—Here’s Where to Buy Your Own