There are 3 different types of ACs: Split Ac, Window AC, and Inverter AC. The split ACs comprises of 2 units – one indoor and one outdoor. Both the units work together to cool down the temperature inside the room. These ACs provide faster cooling effect and are more efficient and quieter when compared to window AC. Window AC is mounted on the walls or the windows. It has 2 sides – the evaporator side and the condenser side. The evaporator side is faced towards the room to cool down space and the condenser side faces outwards and sends the heat out of the room. Inverter AC offers varied compressor speeds. The compressor present in the outdoor unit speeds up or down on the basis of the requirement. This reduces the stress on the compressor and hence demands less power. The inverters ACs are energy-efficient models.