The DampRid 5 lb. Refillable Moisture Absorber is the solution for a non-electric dehumidifier and musty odor eliminator and air freshener. This musty odor eliminator DampRid works by attracting and trapping excess moisture to maintain optimal humidity levels. Use this mega 5 lb. container for long-lasting fresher, cleaner air. To activate this convenient odor absorber, simply remove the lid, but do not remove safety cover. Cut the enclosed bag open, pour crystals into the top tray and replace lid. Requires only 2 refills per year depending on temperature and humidity. Keep out of reach of children. Read and follow all label directions.