Ultraviolet Lights
 

The cleaning mechanism of UV is a photo-chemical process. The contaminants that pollute our homes are almost entirely based upon organic or carbon-based compounds. These compounds breakdown when exposed to high intensity UV at 240 to 290 nm. Short-wave ultraviolet light can destroy DNA in living microorganisms and breakdown organic material found in indoor air. UVC's effectiveness is directly related to intensity and exposure time.

UV rays must strike the contaminants directly in order to penetrate the microorganism and break down its molecular bonds. This bond breakage translates into cellular or genetic damage with the germs rendered harmless by robbing them of the ability to reproduce.

Our sun provides a wide spectrum of light energy - from the invisible ultraviolet to normal visible light and up through the visible infrared. We are most familiar with the invisible UVA and UVB light waves that are harmful to our skin. But it is the short UVC wavelength that contains the right level of energy for destroying dust mites, bacteria, viruses, yeasts, and molds. Medical studies using ultra-violet disinfections have proven effective in reducing the allergens responsible for numerous allergies and asthma, as well as the spread of tuberculosis, measles, influenza, and smallpox. 

When microbes (bacteria, pollens, viruses, yeast, fungi and mold spores) are exposed to sufficient doses of UVC light, their DNA is destroyed, causing cell death or making replication (cell division) impossible. They are rendered harmless. Since UVC leaves no product residues or contaminates, it is an environmentally friendly alternative to using chemicals.