Glade Automatic Spray is a battery-operated unit that time-releases fragrance automatic, while a boost button provides more control with an instant burst of fragrance..Warnings: Warning Text: CAUTION: Contents under pressure. Contains propellants. Do not expose to heat or store at temperatures above 120F Do not puncture or incinerate container. EYE IRRITANT. Contains acetone. Avoid contact with eyes. FIRST AID: EYES: Immediately rinse eyes with plenty of water for at least 15 minutes. If irritation persists, get medical attention. Do not use in small confined pet areas without adequate ventilation. KEEP OUT OF REACH OF CHILDREN AND PETS..Ingredients: Ingredients: Propellant, Fragrance, Carriers: Isoalkanes, Acetone, SCJ Formula # 35*14838. Directions: Instructions: Instructions: Installation: 1. Open. 2. The insert can. 3. Set timer. Operation: please read the important safety instructions. Ensure time setting switch is in the off position. Remove And discard the cardboard shipping retainer. Pull And discard the red tab to activate the unit. Remove cap from refill And insert the can with the spray attachment facing out. Turn unit on by selecting your desired time setting, then close the unit. The green light will immediately come on. The unit will automatically spray after the light blinks three times. For an instant burst of glade fragrance at any time, press the boost button on the front of the unit. Replacing refill can: keep the unit pointed away from your face at all times. Turn the automatic spray unit to the off position, And remove the empty can. Insert this refill can with the spray attachment facing out. Turn the unit on by selecting desired time setting. The first spray will come after a several second delay. User maintenance: replacing batteries: press button at top of unit to open front cover. Turn the time setting to the off position. Remove refill to access batteries And replace with two new AA alkaline batteries. Replace refill, ensuring spray attaches.