These patented V.V.P. base cabinet housings create a vortex that pulls dust particles from the table just like that famous vacuum for the home where the designer says “I just want things to work properly”. The design of the V.V.P. is so revolutionary that they are SELF CLEANING so you never have dust buildup or clogs in the dust port opening. We recommend that you also set up your shop with a cyclone dust collection system for maximum collection suction and minimal airborne particulate matter.