GREE 3HP KIMBE INVERTER FS AC is one new environmentally friendly refrigerant, does not destroy the ozone layer, work pressure is about 1.6 times the normal R22 air-conditioning, refrigeration high (warm) efficiency. Big air volume, fresh cooling for a whole house: big air volume 360 degree air follows. Flash cooling for a whole house. A powerful compressor generates a strong flow of cool air to ensure speedy cooling for your instant comfort. Auto clean technology of evaporator: evaporator has self-cleaning technology, air outlets, air removable and washable. Auto-restart when power recovered: auto restart when power recovered. In the event of a sudden power failure, AC restarts automatically and will operate based on the previous setting.