Works with other refill brands. 60 days (based on 36 minute setting). Boost Button for instant freshness. Contains 1 automatic spray unit, 1 refill canister & 2 AA batteries. Glade Automatic Spray brings delightful fragrance week after week - automatically. Perfect for the larger rooms of the home. 2 Ways to Spray: Time Settings: Choose 1 of 3 settings to select how often you would like your fragrance. Boost Button: Press the button for an extra burst of fragrance anytime you want it. Vacations don't last forever, but the sweet smell of the tropics can! Hawaiian Breeze gives you an exotic escape from the everyday. Spray unit made in China.