FIELD: cooling or freezing equipment.
SUBSTANCE: present invention proposes refrigerating and freezing devices. First tight space and the second tight space are located in space for storage inside refrigerating and freezing devices. Refrigerating and freezing device is additionally equipped with nitrogen generation device, which contains adsorption device and air compressor, which supplies compressed air into adsorption device. Adsorption device uses compressed air for production of nitrogen, which is supplied to the first tight space, and gas enriched with oxygen, which is supplied to the second sealed space. Improved ability of the first sealed space to maintain freshness.
EFFECT: biological activity of the food product in the second hermetic space is guaranteed.
8 cl, 5 dwg
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