In an inverter air conditioner, an inverter continuously regulates the temperature by controlling the speed of the compressor motor. This technology, also known as DC inverter; it has a variable frequency drive that controls the speed of the electromotor. The drive converts the incoming AC current to DC, increasing the efficiency of the air conditioner. Unlike Non-Inverter air conditioner, the speed of the compressor is fixed, which means it operates either at full or minimum speed. The compressor triggers on/ off in order to adjust to the desired room temperature, which causes a great fluctuation in indoor room temperature.