The Clayton Hornet is a HEPA filtered pneumatic vacuum designed especially for aerospace maintenance and chromium dust collection.Nonmarring feet allow it to be set on aircraft.NSN available for military customers. It features a backpack harness, as it is pneumatic it runs off hangar air supply, weighs 10 pounds, and is dust ignition proof. For more inforamtion visit www.vacuumsanding.com or call (800) 248-8650.