Perfect size cyclone for a small shop when coupled with a 1-2 HP blower. Removes almost all the dust in the stream and is way more efficient than a baffle. If you have the space atop a drum for this cyclone and the blower, you're much better of going this route. It took me a month or so to completely upgrade my old shop vac system to a fully automatic cyclone system, but it's done now for a very long time with none of those work stoppage problems like a clogged filter caused by an inefficient separator. Thanks, Oneida!
