Bosch 3931 Airsweep Wet/Dry Vacuum Recommendations

Pulse-Clean filter cleaning system shakes dust from the dual filter cartridges to maintain maximum suction. Pulse-Clean can be activated manually, or, when desired, automatically, when a connected power tool is switched off (a helpful remote control, such as when working on a scaffolding). Power-tool activation with 7-second run-on after tool switch-off to empty hose.