The AUX C-Series R32 Inverter Air Conditioner (models ASW-09CAR3DI and ASW-12CAR3DI) is a split-type air conditioner utilizing R32 refrigerant, known for its lower global warming potential compared to other refrigerants. The 'Inverter' designation indicates that it employs inverter technology, allowing for variable compressor speeds, resulting in energy efficiency and precise temperature control. The ASW-09CAR3DI likely denotes a 9,000 BTU/h cooling capacity model, suitable for smaller rooms, while the ASW-12CAR3DI suggests a 12,000 BTU/h capacity, appropriate for slightly larger spaces. This series offers cooling functionality, and potentially heating depending on the specific model features. Expect features such as adjustable fan speeds, sleep mode, timer functions, and air filtration to enhance user comfort and air quality. The C-Series represents AUX's offering in the residential air conditioning market.