Ultraviolet Component. How does it work?

The Ultraviolet (UV) component of sunlight is the main reason that microbes die in outdoor air. UV is invisible light with a frequency just below the Visible Spectrum. The optimum germicidal wavelength or frequency is 253.7 nanometers and is located in the "C" segment of the Ultraviolet Light Spectrum. As a microbe passes through UV-C, the light penetrates directly into the organism's nucleus disrupting the molecular bonds of it's "DNA". This breakage renders the microbe unable to reproduce and shortly thereafter the organism dies, leaving no offspring. Viruses are easier to destroy than bacteria, with mold spores requiring the largest UV dose! Adding UV air disinfection to filtration systems prevents colonization of even the smallest of the microorganisms, which slip easily through most air cleaning devices and can cause a variety of ailments, including hypersensitivity reaction, hypersensitivity pneumonia, asthma, sinusitis and even skin rashes. Other viral/bacterial organisms that cause serious maladies such as Sick Building Syndrome (SBS) and Biotoxin Associated Illness (BAI) can also be eliminated. UV-C has a very specific duty to "destroy" biological growth and does not replace air cleaning equipment! For example, the moist environment of an HVAC system can be a perfect breeding ground for airborne molds and micro-organisms. HVAC systems often lose efficiency when bacterial and mold growth becomes excessive. An air cleaner with a properly installed UV-C system ensures a bacteria and mold free coil, because the coil is constantly bathed in UV energy. This prevention of biological build-up results in greatly improved indoor air quality and a more efficient HVAC system.