I am still a strong believer in installing a simple chip/dust removal blower and vent it outside or install it outside in a nice looking little add on with a collection box. You still need some kind of catch can ahead of the blower. The advantage is increased unrestricted flow, lower HP unit to do the same amount of work, less dust in the shop, less noise, and probably less cost. You can use furnace filters to keep most of the dust inside the add on lean to.
Last edited by Willway; 02-08-2013 at 10:33 PM.