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  • Laboratory cryogenic freezers that use conventional compressed gas cycles for cooling. These freezers typically include an enclosure to store the frozen products, an electrical gas compressor, tubes and valves for the refrigerating gas, appropriate temperature sensors, and controls. Electromechanical cryogenic freezers typically perform a cascade two-cycle refrigeration process to lower the temperature in their chambers at or below -130 degrees Celsius (-202 degrees Fahrenheit). Electromechanical cryogenic laboratory freezers are mainly used for cell and/or tissue (e.g., ovum, embryo, bone, cornea) storage for extended periods (typically several years).
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