Hey all,
dust collection systems like the Harbour freight 2 hp (low end) or the Felder AF 22 (high end) use induction motors that have no carbon brushes, have a high efficiency and run slow and quiet. Even when they are offered for single-phase AC supply, they have induction motors, in this case the induction motor is a capacitor start induction motor.
Shop vacuum cleaners use universal motors with their loud, sparkling carbon-brush commutators, which also often run on much higher speeds than a dust collection system. And they need carbon brushes to be replaced regularly.
However, there was reported that with the use of shop vacs all dust was collected successfully with a Dust Deputy and 70 mm (2½″) hoses here and here