8,000 BTUs cools space up to 350 square feet, R32 Refrigerant: Environmentally friendly, R32 s GWP (Global Warming Potential) is 3x lower than R410a, Inverter Compressor: Up to 35% energy savings with advanced DC inverter technology, U-Shape Design: provides flexibility of opening your window to allow fresh air into the room as desired., Silencer Technology: operates as low as 40dB. Unit is 9x quieter than traditional units.