Bosch - Bosch- Airsweep 3931A Shop Vacuum
The Bosch’s filter shaker turns on automatically when you have a tool plugged in, and you can activate it manually when you don’t.
Two features that have become state-of-the-art for shop vacuums are variable suction and an onboard power outlet. These features are related: If you have a tool plugged into the vacuum, the combined amp draw might trip your breaker. So it’s nice to able to dial back the suction a bit to draw less power. Also, with some sanders, full suction will pull the tool against the wood, making it harder to move it.