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Cryogenic dewars have become increasingly important in dermatology applications, particularly in the treatment of skin lesions and tumors. Liquid nitrogen is commonly used in dermatology to freeze and destroy unwanted skin tissue, and cryogenic dewars are an essential tool in delivering liquid nitrogen to the treatment site. Cryogenic dewars can store liquid nitrogen at very low temperatures, typically below -196°C, and provide a controlled and precise delivery system for the freezing agent. This technology allows for the safe and effective treatment of a wide range of skin conditions, including warts, moles, and skin cancer. Cryogenic dewars have revolutionized dermatology, allowing for more targeted and less invasive treatments, leading to improved patient outcomes and reduced recovery times.