The Pulse-Bac 2500 is ideal for vacuuming up fine powders like powder coat, concrete, wood, asbestos, fiberglass, drywall and any other non-combustible dry material. Our patented filtration system is able to maintain lift and suction from start to finish. Unlike today's standard vacuums that begin to loose suction once the filter becomes faced with debris, CDCLarue Pulse-Bac vacuums automatically and continually flushes dust and debris off the filter while you work, preventing them from ever becoming faced with debris and clogging.