Cladosporium, for example, can sometimes trigger allergies but is generally harmless, whereas other molds like Penicillium crustosum produce harmful poisons called Mycotoxins.

比如说，枝孢菌有时会引发过敏但大体上是无害的。而其他霉菌，像皮落青霉这种就会产生真菌毒素这样的有害毒素。