De'Longhi Pinguino 11,500 BTU 3-in-1 Portable Air Conditioner Can Be Used In Any Room Convenient: 5 Minute easy set up and portability for room to room cooling luxury Cool: Hot air is exhausted outside through included hose, humidity is extracted from the room and recycled within the portable air conditioner, which is then turned into cool air that efficiently flows inside. Comfort for up to 425 square feet. Controls: Intuitive yet flexible touch panel controls accommodate any in-home environment condition (fan, cool, dehumidifier or air purify). LED backlit remote included. Clean: Washable air filter removes impurities from the air, assuring comfortably clean air. Comfort: Patented Condensate Recirculation System provides a quicker, more comfortable in-room temperature. And all DeLonghi Pinguino portable air conditioners offer quiet performance, only slightly above normal conversation.