This product listing is for a *separate* air conditioning unit component, either the indoor blower (air handler) or the outdoor compressor. It uses R22 refrigerant and is a non-inverter model. It's important to note this is *not* a complete, matched air conditioning system (Bukan Satu Set in Malay, reinforcing it's not a complete set) and buyers should specify which component they are interested in purchasing: either the indoor blower unit or the outdoor compressor unit only.