About this item 4-in-1 Portable Air Conditioner: Features cool, dehumidifier, and fan modes. Stay cool(61℉-88℉) during summer, and use the fan mode or dehumidifier mode for air circulation on milder days Sleep-Friendly Design: Includes a sleep mode and 1-24 hour timer. The quiet operation(<51dB) won't disturb your rest while maintaining a comfortable room temperature, two adjustable fan speeds Easy Installation: Comes with an exhaust hose and an adjustable window kit that fits windows from 15.47 to 47.24 inches(For small window, trimming may be necessary). Get it set up in minutes, No need to be a handyman to get it running Low Maintenance: Self-evaporating operation effectively reduces the frequency of manual water draining.