We're in a fairly new built house. Some bits not completely finished. To add to woes of trying to get rid of signs of builders we now have what we think are a lot of dust mites. Tiny cream 6 or 8 legged things (not sure exactly as I squash on sight and then can't tell how many legs they had). My mania with mop and bleach is not doing them in. Anyone had them? Succeeded in getting rid of them? If so how ? Tkx.