The AP55023HR1GD Portable Air Conditioner, best suited for large rooms (550 sq. ft. or less) with 8000 BTU of cooling power, provides more efficient and easier to use features all year long. Innovative dual hose design cools down the room more efficiently by balancing air pressure. 4 different modes provide comfort all year long – Cool mode when you are hot, heat mode when you are cold. Or fan mode for better ventilation. You can also use dehumidifier mode to remove excess moist. The control panel and remote control are simple and intuitive. The maintenance is simple thanks to the washable and removable filter. 2 year warranty on both parts and labor is another reason why you should buy air conditioner.