Medical Liquid Nitrogen is obtained through various processes of pressurization, purification, condensation, and filtration from the air at high pressure and temperature. It is then stored and preserved in specially designed liquid nitrogen containers equipped with double-walled vacuum and insulation systems. These containers enable the preservation and storage of biological samples at extremely low temperatures (-196°C) without compromising their intrinsic qualities. The use of these containers minimizes the evaporation rate of liquid nitrogen.