To use as a vac, hook up Air Vac to 90 psi of air and pull trigger. Abrasive is then pulled into bag on rear, where it can easily be emptied into cabinet for reuse.
To use as a blow gun, remove bag, turn cylinder on rear of tool, and pull trigger. Attachments reach into tight "nooks & crannies" inside cabinet and on grid screen.
Kit includes: plastic gun body, dust bag, and 5 attachments (1/4" diameter tiny nozzle, 2-3/8" wide brush, 3-1/2"L flat tube, and (2) 8"L extension tubes).