The round bristle brush for the DCV501H can have its bristles removed, and will fit the dust extraction ports on some tools. Might be a useful option for portable dust extraction, especially
Dewalt DC5001h Replacement Filter for DC500 Cordless/Corded Wet Dry Vacuum Cleaner Part - China Dewalt Vacuum Cleaner Filter and H12 HEPA Filter price | Made-in-China.com