Hospeco Tropical Tradewinds Metered Air Freshner Refill Health Gards Metered Aerosols, featuring . Neutrex. the Smart Odor Neutralizer, are specially formulated for public restrooms and other large rooms. Covers up to 6,000 cubic feet. Universal spray actuator fits most competitive dispensers. 12/7 oz. can provides 30 days of continuous deodorization. V.O.C. compliant.