1,500 CFM Used Diversi-Tech Downdraft Bench SINGLE PHASE! (Great for Dust, Smoke, Or Fumes from Welding, Grinding, Deburring, Cutting , Sanding, Finishing, Soldering, Painting or Mixing), Mdl. DD 2X4, Reverse Pulse Cleaning System, Cartridge Type Filters, Year (2004) #A6477