Tiger-Vac industrial HEPA vacuum cleaners for range maintenance are 99.995% efficiency on 0.3 micron, include certified division 2, OSHA approved, ideal for vacuuming unspent gun powders, NFPA 652 compliant, single, dual and triple motor configuration with front mounted floor attachment for wide area cleaning. The sidekick model with the shift and go from floor attachment to wand, is great to clean the bullet traps, expansion joints and crevices. Check out this video!!!! https://www.youtube.com/watch?v=z6f6iKWmMSQ (less)