Dr. Mark Sneller, a well-known pollen and mold expert in the Tucson area is out with a new book about indoor air quality. In "Greener, Cleaner Indoor Air", Dr. Sneller outlines simple steps to keeping your indoors air quality good. Dr. Sneller says your refrigerator is the worst area of the home to harbor bacteria, mold and viruses both inside and outside and the laundry room may be the second worst room of the home!