... ,24Hrs 3)2AA battery 4)300ml air freshener automatic aerosol fragrance dispenser,Automatic Aerosol dispenser/Air freshener dispenser/Aroma spray machine 1 ... ,22.5 minutes,1 hour,2 hours,3 hours . The air freshener refill can spray 3,000 times.1) The dispenser ... .5 minutes,1 hour,2 hours,3 hours .2) The air freshener refill can spray 3,000 times3) Apply standard steel ...