A++ Rated Frost Free Side By Side Fridge Freezer with No Frost technology by Inverter, and keeps food fresh and clean by Vitamin-Safe & Hygiene Active. This new model is amongst the most energy-efficient in the industry, thanks to Panasonic?s Inverter technology, U-Vacua vacuum insulation panel and Twin-Eco Cooling System. The Inverter technology for example, uses a system of sensors and microprocessors to select automatically from multiple possible power levels, allowing the product to run on minimal power overnight and at times of low usage, thereby conserving valuable energy.Panasonic?s U-Vacua vacuum insulation panel, included on the NR-B53VW1, is an ultra-thin insulation sheet made from glass-fibre processed in a vacuum and with 20 times more insulation than traditional materials. In addition, the Twin-Eco Cooling System on the NR-B53VW1 uses an EcoValve to close off the cooling circuit for the refrigerator when it is not needed, unlike traditional twin cooling systems, which always cool both the fridge and the freezer at the same time.The result is greater energy efficiency, a reduction in materials and more space for food storage. Together, these innovative technologies have earned the NR-B53VW1 an A++ rating in the coveted EU energy efficiency standard, a world first in the plumbed-in US style side by side fridge-freezer category.The new products are as stylish on the inside as they are on the outside. Smart interior design ensures the maximum space available for grocery storage, including adjustable shelving, large storage compartments and an integrated wine rack. The NR-B53V1 also features Panasonic?s Vitamin-Safe compartment, a fruit and vegetable section with its own temperature control and high humidity setting, creating the ideal conditions for fruit and vegetable storage. The compartment even features two flashing LED lights to simulate the blue and green hues of sunlight, activating the natural defenses in fruit and vegetables to prevent vitamin loss. Additional features include Panasonic?s Hygiene Active, a combination of technologies that fight odour and protect against harmful bacteria. The system includes a combined lifetime air filter, air circulation and LED light system, which eliminate 99.9999% of typical bacteria.