Cryogenic freezers can be used for storage of biological materials at low temperatures. 

Cryogenic freezers are used primarily for biological storage of human tissue, cord blood, bone marrow, stem cell and other highly sensitive biotech and pharmaceutical applications.

Cryogenics typically refers to producing temperatures cold enough to liquefy gases, and cryopreservation often occurs through the use of liquid nitrogen. The samples can then be stored at extremely low temperatures to maintain their viability over a long duration of time. Freezer hold time and the ability to maintain a cryogenic temperature are vital to securing a stable environment for sample storage.

JX cryogenic freezers are used at many repositories because they are engineered for reliability and durability.