This Commercial Cool by Haier 12,000 BTU Portable Air Conditioner features quiet cooling ample to cover a room about 500 sq.ft. 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 window exhaust kit. Cools 351-450 sq ft Room Full Function Remote - Magnetic and Braille time/temperature Display Digital Temperature Adjust 24 on/off timer and sleep mode Auto-Evaporation for continuous Use