The whisper quiet fan plus soothing night light make this air cooler perfect to use overnight for a comfortable sleep; Arctic Air Ultra is energy efficient and freon free, pulls in hot air through an evaporative air cooling filter and turns it into cool,The multi directional air vent is adjustable to point the air to the area you want,Simply add water to the top fill water tank and press the button; Cool Air Wherever You Need It such as living room, den, bedroom, office, kitchen, bathroom,.