Gree AI-MAX Air Conditioner: Gree AI Plus Inverter Air Conditioner Gree-AI Technology: Smart and energy-saving cooling that automatically adjusts performance. Very Fast Cooling: Turbo feature and cools the room quickly in 60 seconds. Air Purification: Plasma and UV filters to sterilize the air from bacteria and viruses. Wi-Fi Control: Remote air conditioner management. Quiet Operation: Low noise level suitable for sleeping. Refrigerant Gas: Environmentally friendly R32