ELIMINATES MUSTY ODORS & FRESHENS AIR: Keep rooms smelling fresh with Arm & Hammer Essentials Hanging Moisture Absorbers. Musty odors? Give it the Hammer. Includes three 17.5 oz. Linen Fresh bags. 3 SIMPLE INGREDIENTS & A PLEASANT SCENT: Calcium salts, baking soda, and activated bamboo charcoal deodorize and neutralize musty odors. These moisture eliminators contain everything you need to freshen any room. LONG-LASTING FRESHNESS: Freshness lasts up to 60 days depending on temperature and humidity. DELIVERS 10% MORE MOISTURE ABSORBING POWER*: You can see the excess water collect in the bag as the moisture absorber attracts and traps moisture out of the air. Keep clothes, bedding and other linens smelling clean and prevent damp feeling fabrics. IDEAL FOR USE IN closets, laundry rooms, bedrooms, dorm rooms, mud rooms, bathrooms or anywhere excess moisture and stagnant air are a nuisance. Just hang it up, no electricity needed. When full of water, dispose in trash and replace.