Room portable blast chiller

A portable blast chiller system for an enclosed facility, comprising:

• a moveable platform;
• a vacuum-insulated-cryogenic tank positioned on the platform;
• a heat exchanger connected to the vacuum-insulated-cryogenic tank, the heat exchanger having a vertical inlet coupled in parallel to a plurality of equal size horizontal tubes each traversing a width of the heat exchanger and further coupled in parallel to a vertical outlet pipe with an outlet diameter at least twice an inlet tube diameter;
• a temperature sensor;
• a thermostat that monitors the temperature sensor and maintains a predetermined temperature set point by communicating with a solenoid valve coupled to the heat exchanger;
• an exhaust line coupled to the outlet pipe that expels exhaust gas outside the enclosed facility;
• multiple fans attached to the heat exchanger;
• and
• a fail-safe oxygen sensor to protect a biological object in the enclosed facility.