Reasons to choose Liebherr Refrigerators & Freezers Liebherr research & laboratory freezers provide constant refrigeration performance even in extreme climate conditions. Highly efficient with lower energy consumption; low operating costs & eco-friendly. All laboratory appliances are designed according to ISO 60068-3 standard with regard to max temperature stability. Self closing door & triggering of acoustic & visual alarm in case of fluctuations. Optimal use of available space ensures that the usable volume of Liebherr appliances is maximized.