**** We also have little dust problem, but there are certainly many items which could add to dust accumulation. If your windows spend much time open, you might get sanding dust, diesel soot, soot from wood stoves (a northwest issue) etc., from your neighbors. The more likely source would be kleenex, paper towels, cotton towels, clothing, etc. Good luck on this one. It's hard to fix when you don't know what's wrong. I would however continue to bathe daily even if it does dry your skin. I would prefer the dust over the odor.