The world first freezer which makes maximum cryogenic -156°C without liquid nitrogen
■ Application of cryogenic cooling system (Auto cascade system) registered to the international patent
■ Use of CFC-free special mixed refrigerants which OPERON Co., Ltd developed
■ Application of aerodynamically designed pan wings equipped with 
   huge capacity and high performance
■ Hermetic compressor for LBP with excellent performance
■ CE certification product for preserving cell
■ Non scaling stainless chamber and round corner design for easy cleaning

Click for more info : http://www.operon.co.kr/eng/page/product02.html