This air conditioner from Croma comes with a 1-ton capacity and with 3-star energy efficiency rating. It also has an ISEER value of 3.56 which shows that you will get the perfect balance of performance and efficiency. It also has a 100% copper condenser and evaporator coated with a Bue Fin protection shield to prevent them from corrosion in long run. It uses R-32 refrigerant which means it is more environmentally friendly and does not harm the ozone layer.