You poor people. That is surely an unhealthy situation for everyone. I remember when I was a child, we
lived in central California on the west coast of USA. It was at the end of the valley, and we were in the bottom
end of the bowl. When we got dust storms, we got all the bad stuff that was carried all the way down the
valley, and built up to at end where the mountains were. We were in the swamp cooler zone, not the AC area or time.All along the side of the hallway, there was a black line. All the heaviest materials were brought in thru the cooler, which was vented into the hall, built up along the sides of the wall, on the light gold colored carpet. It was horrid. It
didnt matter how much vacuuming that we did, it was always there. I know that has a lot to do with the bad
lung problems my mom had, and her husband died from lung cancer. I sure hope that stuff is gone soon.
Its definitely spooky looking even if its not dangerous. All my best for all of you.