Once started, the device automat...
Contains natural essential oils.Once started, the device automatically shuts off after 8 hours, restarting at the same time the next day-8 hours on, 16 hours off.Battery operated for placement anywhere.No water needed as oil diffuses into a mist through microscopic holes in the vibrating plate.Three intensity settings for ultimate fragrance control.Each refill lasts up to 45 days at the lowest intensity setting.