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1994
CDC acknowledges UV effectiveness for TB control
1999
WHO recommends UVGI for TB control
2003
CDC formally sanctions UVGI use in hospitals
2003
FEMA sanctions UVGI as a biodefence option for buildings
The widespread use if UV for air disinfection in buildings is likely an eventuality that will pay economic and health dividends for future generations.
Reduction in community disease transmission rates corresponds to the saved lives and saves economies.
UV Germicidal Efficiency
UV technology can have a major impact on the reduction of various types of nosocomial and community-acquired infections.
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UVGI is the most effective and economic technology for disinfecting air
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The UV technology can contribute to the control of epidemics and to halt contagious airborne disease epidemics, including such multidrug-resistant microbes like MRSA, XTB, SARS and Avian Influenza.
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Ultraviolet Germicidal Irradiation (UVGI) is electromagnetic radiation that can destroy the ability of microorganisms to reproduce by causing photochemical changes in nucleic acids. Wavelengths in the UVC range are especially damaging to cells because they are absorbed by nucleic acids. The germicidal effectiveness of UVC peaks at about 260–265 nm. This peak corresponds to the peak of UV absorption by bacterial DNA. The germicidal effectiveness of UVC radiation can vary between species and the broader range wavelengths that include UVB also make a small contribution to inactivation (Webb and Tuveson 1982).
It has been over 140 years since Downes & Blunt discovered the antibacterial effects of sunlight
They determined that shorter wavelengths of the solar spectrum were more effective at neutralizing bacteria. It is now known that there are germicidal effects of UV-C, UV-B, UV-A and violet blue light. Rapid! Disinfection products’ technology builds on this research and brings a new patented approach that enables UV and violet blue light to be even more effective and adaptable to every day uses.
History of UV
Key Discoveries in the Germ-Killing Power of Light
