Molds are simple, microscopic organisms, present virtually everywhere, indoors and outdoors. Molds, along with mushrooms and yeasts, are fungi and are needed to break down dead material and recycle nutrients in the environment.
Recently there has been a great interest in the existence or non-existence of different types of mold in homes, apartments and commercial buildings. Some of the different types of mold are defined as toxic and non-toxic. Medical information indicates that some types of molds may cause health problems in certain human beings.
Some types of mold are not detectable by a visual inspection by Real Estate Agents or by professional home inspectors. The property may have mold that is hidden from the real estate agents, home inspector and the seller.
The only way to determine if the home you are purchasing contains mold or other health hazards is to retain an environmental expert who can perform specific tests to make that determination. If the presence of any mold or evidence of water intrusion or moisture has been disclosed to you, you should have that condition professionally evaluated.
This is especially necessary if any inspection reports or disclosure documents indicate that there is evidence of past or present moisture, standing water, visible stains, or water intrusion on the property.
More information on Mold may be found in the "Environmental Hazards and Earthquake Safety in the Home" booklet, which may be downloaded at http://www.bhwc.com/EarthquakeEnvironmental.pdf .