I purchased one of these about a year ago. You want suction? Get one of these. It nearly sucked my arm up a 10', 4" hose during setup of my DC system in my shop. The vortex really does work very good. You can see it working when the unit is powered up and there's no need to worry about small pieces of wood clogging the filter. The vortex takes care of that, separating them from the dust. If you need a DC for a number of machines get one of these. You won't be sorry.