Convenient 4-in-1 design: air conditioner, fan, dehumidifier, and heater, 13,000 BTU (10,000 SACC) portable air conditioner cools spaces up to 500 square feet, R32 refrigerant: environmentally friendly, R32s GWP (Global Warming Potential) is 3x lower than R410a, Follow me function: remote control acts as a thermostat, allowing for more precise temperature control, Heat pump function: indoor temperature range of 55F - 81F (13C - 27C)