Read & retain instructions. Usage Directions: 1. Lift to remove outer cover. 2. Insert 3 batteries. 3. Remove refill cap, insert by pushing upright into device until click. 4. Replace outer cover. 5. Turn on device with slider (blue light will flash), select intensity setting. 6. Device will run for 8 hour cycle, release mist regularly, then go to standby until next day. Do: Use only Air Wick Refills. Use in well ventilated areas. Store at room temperature. Keep out of reach of children and pets. Do Not: Use damaged unit. Use continuously. Obstruct air flow. Place near source of heat/direct sunlight. Use in small, confined pet areas. Use in sleeping areas. Inhale vapour directly. Do not reuse batteries. Replace all batteries at the same time.