UVC is a band of ultraviolet radiation with wavelengths shorter than 280 nanometers.
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'''UVC''' is a band of ultraviolet radiation with wavelengths shorter than 280 nanometers and is generated by the [[Sun]], in addition to artificial sources such as mercury arc lamps and germicidal lamps.
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UVC is extremely dangerous, but it is completely absorbed by ozone and normal oxygen (O<sub>2</sub>).
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UVC is extremely dangerous, but it is completely absorbed by ozone and normal oxygen (O<sub>2</sub>). Since UVC has high energy it is used in the sterilization of food, water and even air.