What Are the Common Types of Molds in Houses?


Quick Answer

Aspergillus and alternaria are commonly found in homes, particularly in damp areas such as bathrooms. Cladosporium and penicillium are also found in homes and buildings.

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Full Answer

Aspergillius and alternaria are the two most common types of indoor mold. Aspergillus is a type of mold that develops on food exposed to air, and it is often found in HVAC ducts within the home. Cladosporium is identifiable as small black specs that develop in areas where condensation is present, and it is also found in HVAC ducts. Mold typically develops in areas with high humidity and poor ventilation, and exposure to mold spores can cause illness, including asthma-like symptoms, red eyes and respiratory issues.

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