We are pulling up our carpet to get ready to have new laid this upcoming Wednesday. We bought some BIN Shellac to put down because of some places where the dog had marked. It worked great on those spots. But as we tore up the rest.. we found a couple of very small areas, like less than one square foot, that look a little black.. I think it's mold although I'm not 100%. When we found it, it was dry and the wood is not damaged at all. I saw someone use some kind of microbial?? primer on a floor with stuff like this before and I found Zinsser Mold Killing Primer. Do you think it would be okay to use this? I already used some of the concrobium mold remover on the spots and i'm waiting for it to dry. But I'm wondering if we should do that too? As it dries.. the spots are still there. I know it won't necessarily remove the mold stain. I did take a sponge to it and black is coming up on the sponge. The areas are tiny and they are kind on corners where the floor meets the wall... so hard to replace and the would is still in great condition. Just wondering if you think i'm doing the right thing here? I'm a little afraid to scrub the spots in case the concrobium didn't kill it.. since I got a little black stuff up hours later. Another concern.. when we first found it, my husband just swore it wasn't mold and poked at it and took a brush to it and even smelled it.. ugh. That made me worry that he kicked up the spores all through the house.. and I was nearby when he did it. I have the Hepa air purifier going now and when I sprayed the Concrobium, I wore a mask and gloves. I hope we won't get sick from this though. I don't like to mess with mold.. I am always so careful. So mad at him for doing that. We have a 4 year old at home.. but he was in his room asleep at that time. The spot is in our hallway by our utility closet where the water heater is. So there aren't any vents in that area.. but I probably didn't enclose the area very well. Any reassurance here would be great. I'm paranoid about everything being contaminated. Oh and I will add.. there was a leak in the area.. but it had been completely fixed, so the source of the problem has been taken care of. It happened awhile ago. It's completely dry in there.

Hi everyone, I am doing some cleaning and purging, and I took two large soft-sided CD holders out of my closet. They were stored on a high shelf without any significant moisture as far as I can tell. I noticed some sort of substance on the side of the cases and also along the zipper of one. The case in the photo is probably either leather or a leather-like synthetic. THe other is a synthetic. Does anyone have any insight on what the substance might be? Dust or mold or something else? Here are some photos: [ATTACH]69877[/ATTACH][ATTACH]69878[/ATTACH][ATTACH]69877[/ATTACH][ATTACH]69878[/ATTACH]