Hospitals where there are lots of people with different ailments and diseases, can be potentially dangerous place laden with life threatening bacteria. One company, Indigo-Clean has developed a technology of pathogen-killing light fixture using visible light that continuously disinfects the environment and bolsters current infection prevention efforts. It is installed into the ceiling like any other light fixture and when activated emits light at a wavelength of 405 nm.
The indigo light, not quite in the range of the more dangerous ultraviolet light, causes bacteria to produce reactive oxygen species, halting their growth and reproductive abilities. The light is supposedly safe enough to be left on continuously to provide all-day protection against pathogens on surfaces and floating in the air. The fixture is available in three varieties, depending on the facility’s needs: blended white, indigo-only, or switchable white/indigo.