Today the subject is mold and what’s considered safe mold vs harmful mold. Whether it be friendly or foe, we say it’s gotta go! However, the conditions: 1,2, and 3 1 would be normal cology 2 would be what are called settlled spores.
Typically it’s settled spores from a condition 3.
Condition 3 would be visual mold spores. You can see mold on the wall, that’s contamination. When it settles to things that are porous, that is condition 2, settled spores. And those can be HEPA vacuumed, damp wiped and laundered and not too much of a problem. Now we’ll get into condition 3 where you have actual visual mold that should not be safe.