That setup will work real good as a dust collector. "Ionic Breeze" We have five units at work called "Smog Hogs" that use the very same principal to remove welding dust, machining oil smoke, and other contaminants from the air. They are very effective! (and dirty), (and a pain in the a$# to clean) Their operating voltage is 15 kv. The ioniser grid is negitive and the collector grid is positive. Both grids are insulated from ground.
Beware the dust bunny brigade!!!
