Ultraviolet C (UVC) has been in wide use for over 80 years and is proven to be safe, clinically effective, and economically beneficial. UVC has played a major role in inactivating pathogens such as tuberculosis, measles, and SARS in recent history. With the threat of new highly contagious diseases such as COVID-19, UVC is at the forefront again, providing protection from these new strains of pathogens.