MODEL GML945PZ8F Â Clean, fresh air kept in the fridge The combination of the activated carbon filter & the fan eliminates bad odors to maintain clean air in your refrigerator. Pure N Fresh Air purification system by LG. The ventilation passes air & odors through the activated carbon filter which deodorizes & returns the air to each shelf thanks to the cold column. Linear Inverter Compressor LGLinear Inverter Compressor is quieter than conventional compressor thanks to LG's advanced technology. It also saves more energy & offers greater reliability & durability thanks to a 10 year warranty * on the compressor parts. Â