The Haier 12,000 BTU portable air conditioner and 11,000 BTU heat function features quiet operation and ample power to cover a room of about 500 sq. ft. Also it will remove about 100 pt. of moisture from the room per day. This unit also features eco-friendly refrigerant and is free of any lead and mercury making it RoHS complaint. This model also features casters, a remote 24 hour timer, and a 46 in. extended hose window exhaust kit.