Ultra-low temperature freezers are refrigeration devices that achieve temperatures far below those of ordinary refrigerators through a special compression refrigeration system. They are currently commonly available in different specifications such as -40℃, -60℃, -86℃, and -150℃ to meet various storage needs.

Environmental requirements for low temperature freezer are as follows:

1. Room temperature for storage of freezers: 10℃–28℃, ideally 18℃–25℃, with a maximum not exceeding 32℃.

2. Room humidity for storage of freezers: below 80% RH. If the maximum temperature is 32℃, the humidity should be below 57% RH.

3. Avoid excessive dust, mechanical shaking, or vibration in the room where the medical freezer is placed.

4. Leave at least 30cm of space around the freezer for ventilation and heat dissipation; ensure good ventilation and avoid direct sunlight.

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