The MeacoCool 9,000BTU portable air conditioner is designed for personal cooling in rooms of 16-26m², perfect for home or office use. It helps eliminate humidity, making it ideal for sticky summer days. Remote control (included) or smartphone app control. The units 53dB(A) sound pressure level at its lowest fan speed. The sleep mode keeps the unit in low fan speed to ensure the lowest possible noise possible. This can be combined with the off timer to ensure you do not wake up cold and shivering during the night.