The Hitachi Solution for Powerful Refrigeration Plus Exceptional Energy Saving. It provides optimum cooling in both the freezer and the refrigerator compartments, something a single fan can’t do. Improved Dual Fan Cooling ensures energy saving and powerful cooling, supported by the Eco Thermo-Sensor in each compartment detecting any temperature changes at all times. Capable of providing exceptionally powerful cooling by generating a large volume of chilled air, as well as efficient low power cooling with microcomputer control.