Below are helpful links to information regarding the Puro-Air System technology.
UV Germicidal Lamp Technology
Placed close to air handlers, the lights attack the DNA within living organisms, including viruses, mold and bacteria spores, killing them over time. They turn to dust and get caught in the filter, cleaning up the whole system over time...
http://en.wikipedia.org/wiki/Germicidal_lamp
http://mmrs.fema.gov/news/influenza/2006/apr/nflu2006-04-11a.aspx
Mold - Environmental Protection Agency
As molds grow they digest whatever they are growing on. Unchecked mold growth can damage buildings and furnishings; molds can rot wood, damage drywall, and eventually cause structural damage to buildings. Mold can cause cosmetic damage, such as stains, to furnishings...
http://www.epa.gov/mold/moldcourse/chapter1/home.html
U.S. Environmental Protection Agency
Molds are usually not a problem indoors, unless mold spores land on a wet or damp spot and begin growing. Molds have the potential to cause health problems. Molds produce allergens (substances that can cause allergic reactions), irritants, and in some cases, potentially toxic substances)...
http://epa.gov/mold/moldbasics.html
Information On Allergens
When possible, an allergic person should use air conditioners inside the home or in a car to help prevent pollen and mold allergens from entering. Various types of air-filtering devices made with fiberglass or electrically charged plates may help reduce allergens produced in the home...
http://www.webmd.com/content/article/5/1680_50308.htm