Clean scented disc, with a nonoffensive odor, stops mold, mildew, and musty odors in closets, chests, boats, and campers. Use between mattresses and box springs, in folds of an upholstered couch, under furniture cushions, or other areas where musty odors are a problem. Can be used in vacuum cleaners or in return air ducts. 2 oz. disc lasts for months.