Quickly fill any room with cool, moist air! Eco-friendly, portable air cooler pulls warm air from the room through its evaporative water filter to humidify while it cools. Just fill the 28 oz. water reservoir and turn on; the moist air mist keeps a 7-ft. area cool for up to 10 hours. Has a quiet, two-speed fan, adjustable air vents, water level gauge, LED power indicator, non-slip rubber feet. Uses 4 C batteries (not incl.). Deluxe model includes an AC adapter.