Can you see mold spores?

I've had a number of recent questions about the size of mold spores and whether or not you can see them. Mold spores average between 3 and 10 microns in diameter... thats very small. An average human hair is about 200 microns in diameter... just to put it in perspective. So, the answer is no, you cannot see mold spores without a microscope. When you see visible mold, you are actually seeing the mycelium (the root-like structures called "hyphae" form the tangled mass called "mycelium").