Molds are part of the natural environment, and can be found everywhere, indoors and outdoors. Mold is not usually a problem, unless it begins growing indoors. The best way to control mold growth is to control moisture. The United States Environmental Protection Agency provides information and guidance for homeowners and renters on how to clean up residential mold problems and how prevent the growth of mold. To find out more information about residential household mold, click here.