Question: how to tell the difference between black mold and toxic black mold?
Answer: The only two things you know for sure when you see “black mold” is you have mold and that it is black in color. That's all. Scientifically, there is no mold genera or species that is called “black mold” or “toxic black mold.” Of the million-plus species of mold, about 20,000 species are indeed black.