This is an AUX C-Series air conditioner featuring inverter technology for energy efficiency and consistent cooling. The model 'ASW' is part of the C-Series. It boasts a 5-star energy rating, indicating high energy savings. It also includes an M-Series Inverter with a focus on MER (presumably referring to the SEER/Seasonal Energy Efficiency Ratio or a similar efficiency metric). The inverter technology enables variable speed operation, consuming less power than traditional AC units and maintaining a more stable room temperature. The 5-star rating and the inverter technology highlight the product's focus on energy conservation.