The basics of UV light
Often referred to as ultraviolet (UV) light, UV radiation is a type of electromagnetic radiation with wavelengths shorter than visible light and longer than X-rays.
UV radiation falls into three main categories depending on its wavelength: UVA, UVB, and UV (see the diagram below). The shorter the wavelength, the more energetic the radiation. UV, which has the shortest wavelength, can act as a disinfectant and has been used in healthcare, food, and biotech for over 30 years.
UV light works as a disinfectant because direct exposure to UV light ruptures the DNA or RNA of bacteria, viruses, and other germs, making them unable to multiply and cause an infection.