A great alternative to haze, steam, or fog! Perfect for adding dreamy or eerie effects and lengthening light beams. Haze stays airborne for up to one hour in an enclosed area. use in 15' x 15' or larger rooms with exhaust. To remove haze, turn up ventilation or open doors and windows. The can comes with a push button top for horizontal spray. Each 30-second spray will last about 30 minutes. Fill a dance floor room up to 15 times with one can! Safe, non-toxic, non-irritating, odorless, ozone safe, no cfc's, ships ground.