call an HVAC installation company... get good airflow and remove all cloth from the room! keep the room between 30 and 50º and nothing should stay airborne. keep the air moving, too, just in case. you can't get *rid* of dust but you can fight it; tile floors, cold climate and sealed doors/windows help too but that's only when you have the cash. -- illegal wars, prisoners with no trials, and state controlled media. welcome to the land of the free!