AAF's line of DownDraft Benches offers a hands-free method of capture at the source of fumes and dust. 

Model DDB-5000 is a portable unit equipped with an automatic reverse-pulse cartridge cleaning system that is activated each time the power is shut off. The unit offers a 42" x 73" x 36" work surface with integrated overhang, along with a standard steel bar grating, four pleated cartridges, magnetic motor starter, and silencer.