Ultraviolet light is nature’s way of controlling microorganisms. Outdoors, germs are naturally regulated by the ultraviolet light from the sun.

Ultraviolet light is used widely in industry as a disinfectant, keeping food and liquids germ-free during processing and packaging. It’s also used in aircraft ventilation systems to prevent infection.

An ultraviolet air disinfection system installed in a central heating and air conditioning system...