Whynter 8,000 BTU Eco-Friendly Portable Air Conditioner, White (ARC-08WB) Three operational modes: Air conditioner, fan or dehumidifier Self-evaporative system - exhausts most or all condensate under average ambient conditions CFC free r-410a refrigerant, lead free rohs compliant components Remote control with full functionality Upgraded Plastic window kit included. Max. window kit length = 48" , Min. window kit length = 26.5" Close curtains or blind and try to minimize the amount of direct sunlight into the room. This unit can cool up to 250 square feet.