This one is a 255 Litres Frost Free Refrigerator that has a New Smart Inverter Compressor & Multi Air Flow. LG's Multi Air Flow makes sure that cooling by dispersing Cool air does its job effectively in multiple directions & throughout the refrigerator, by implementing the multi-flow air vents in various parts of the refrigerator. The New Smart Inverter Compressor is known as one of the most advanced and energy efficient compressor which basically saves energy up to 36%* by regulating cooling power with respect to the amount of food you load in the refrigerator