There is a lot of information available addressing mold in the indoor environment. Mold is naturally occurring in our world and is relatively harmless at low levels. Mold becomes problematic when high concentrations of mold spore proliferate in the indoor environment. Normal fungal ecology represents typical conditions in buildings that are dry, not water damaged, as well as regularly maintained in the climate and geography where structures are situated. The National Institute of Environmental Health Sciences has published an informative brochure outlining mold, mold exposure, and the continuing study of mold in the National Toxicology Program. Information and education are vital components in successful mold remediation.