Powerful Cooling Capacity: Equipped with 10000 BTU cooling power and a washable dust filter screen, this portable air conditioner can cool down an area of 350 square feet. And the air flow is rated at 330 m³/h. 3 in 1 Design & Quick Installation: In addition to cooling your room, this air cooler can also serve as a fan and dehumidifier. The window kit allows you to attach the exhaust hose to any vertical or horizontal sliding windows and the suitable window size is 25.5''-49.5''. Sleep Mode & 1-24H Timer: In sleep mode, this air conditioner runs quietly (65dB) and the temperature will increase by 1 ° C /33.8 ° F every hour. 1-24 hour timing function allows you to set the auto-off time. Variable Wind Direction & Speed: You can adjust the shutter manually to change the wind direction vertically and horizontally. There are 2 fan speeds (high/low) for you to choose.