IAQ has been a buzzword in the HVAC industry for several decades now and it is becoming increasingly more prevalent in residential applications. In an effort to make homes more comfortable and less hazardous for children, the elderly and those susceptable to germs, HVAC suppliers and contractors have placed much more emphasis on educating the consumer on how to eliminate odor, pollutant, pollens and other germs as well as control and maintain humidity. Goodco has an arsenal of products to address these issues to improve the confort and make the enviroment more liveable.
I am a providing a link to an excellent article on the Consumer Product safety Commission called The Inside Story: A Guide to Indoor Air Quality. There is great information that should help people understand the complexities of this subject.