The Midea 12,000 BTU U+ Smart Window Air Conditioner combines an iconic design-one that keeps the window free to open and close-with powerful, quiet, and energy-efficient performance. Our Variable Speed Inverter Technology offers 45% improved energy savings, minimal temperature variance, and noise levels as low as 31 dBA. For rooms in need of a quick cooldown, FlashCool Mode delivers 35% faster cooling than traditional AC units. With 3 distinct modes-Cooling, Dehumidifying, and Ventilating-this versatile air conditioner has the power to cover spaces up to 550 sq. ft.