The Arctic King 10,000 BTU Window-Mounted Slider / Casement Air Conditioner has many features to make your home more comfortable. Sleep mode keeps you cool all night and saves on energy. A convenient remote control makes controlling the temperature easy from across the room. California residents see 10,000 BTU window air conditioner cools a room up to 450 sq. ft. with electronic controls and remote control, which allow you to set the comfort level to your preference. Precisely control the temperature and fan speed from across the room. Fresh Air Ventilation, Refrigerant R410a and washable filter will keep a comfortable and healthy environment.Prop 65 WARNINGS