UVC disinfection uses ultraviolet light with a wavelength between 200 and 280 nanometers to kill or inactivate microorganisms. This method is effective against bacteria, viruses, and fungi, making it a popular choice for sanitizing surfaces, air, and water. UVC light disrupts the DNA or RNA of pathogens, preventing them from replicating and causing infections. UVC disinfection is commonly used in various settings, including hospitals, laboratories, and water treatment facilities. It is considered a chemical-free alternative to traditional disinfectants, reducing the risk of harmful residues. However, safety precautions are necessary, as direct exposure to UVC light can harm human skin and eyes.