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Ultraviolet ( UV ) light: UV radiation is an effective viricide and bactericide. UV deactivates the DNA of bacteria, viruses and other pathogens and thus destroys their ability to multiply and cause disease. Specifically, UV-C light causes damage to the nucleic acid of microorganisms by forming covalent bonds between certain adjacent bases in the DNA. The formation of such bonds prevent the DNA from being unzipped for replication, and the organism is unable to reproduce. In fact, when the organism tries to replicate, it dies. Ultraviolet light is nature's way of controlling microorganisms. Outdoors, germs are naturally regulated by the ultraviolet light from the sun. The Ultraviolet light should be replaced every 2 years. Improves indoor air quality through disinfection |