Mold can be found throughout the environment and it is key part of the ecosystem; however, exposure to elevated levels of mold in the places people live, work, go to school, or spend time can cause potential health issues for some individuals. This is due to the fact that mold is known to be an allergen, irritant, asthma trigger, and in some cases, the cause of opportunistic infections or the source of toxic substances known as mycotoxins. , , , , The U.S. Environmental Protection Agency (EP...