Are all molds harmful to humans?

The correct answer is that some molds are harmless. While it is well-established that certain types of molds can produce mycotoxins and cause health issues, not all molds have harmful effects on humans. In fact, many molds play beneficial roles in nature and some are even used in food production, such as in cheeses and antibiotics like penicillin.

It is important to differentiate between various mold species and their potential health impacts. For example, common household molds like Cladosporium and Aspergillus are typically not harmful to most people, although individuals with allergies or compromised immune systems may have reactions. Understanding this distinction is crucial for assessing mold growth in indoor environments and determining appropriate remediation measures when necessary.