0940-20 M18 18-Volt Lithium-Ion Brushless 0.25 Gal. Cordless Jobsite Vacuum (Tool-Only) The 0940-20 M18 Compact Vacuum provides users with powerful performance and ultimate versatility to excel in small-area and spot clean-up applications on the jobsite. Armed with a Brushless Motor and exclusive 2-stage debris separation, the compact shop vac is optimized for dry jobsite debris.nbsp; The 2-stage debris separation divides small and large particles into the bagless canister prior to entering the filter. Brushless motor plus 2-stage dry debris separation optimized for dry jobsite debris 50% more sustained suction versus competition for more efficient clean-up.