I just did a home test kit on my mom's house, b/c I get sick every time I'm there. I'm waiting on the lab results. It's from Professional Labs, I picked it up at Lowe's for >$9. It was a Petri dish set up deal, then I mailed the dish to the lab for anaylsis $30. You only mail it in for anaylsis if mold grows on the dish.
My mom's house had at least 7 different types of mold growing on the dish. I left it in a room for 1 hour.
You can also get this same mold test kit on-line at a variety of places. The kit came with a swap in the event you were testing active mold spores on a surface.
Photo of Mold Petri Dish
I hope you can see this, it's really sick to think when we go there we are all breathing this. Oh, and my Mom and Dad think I'm nuts...