Enjoy ultimate comfort with our 12000/12000/18000/23000/9100/9100 BTU mini split air conditioner!This high-efficiency inverter mini split AC system efficiently regulates temperature in rooms up to 450sq. ft, boasting an impressive 19 SEER2 and 8.5 HSPF2. It cools down to 60℉ and heats up to 90℉, ensuring year-round comfort. More than just an air conditioner, it functions as a heater, dehumidifier, and fan. Other features such as sleep mode, ECO mode, 24-hour timer, remote control, child lock, 4D auto swing, chassis electrical heating and self-cleaning offer ultimate convenience and security. Plus, with whisper-quiet operation, you can enjoy a peaceful and comfortable atmosphere, whether you're working, sleeping, or relaxing at home.