METAL FABRICATOR HUMAN LUNGS DON’T LET THESE BE THE ONLY THING COLLECTING DUST & FUMES IN YOUR FACILITY NO MORE SMOKE, DUST AND NO MORE FUMES! Ambient Air Control Pollution Fighter  AR-5000 INDUSTRIAL AIR CLEANER with the unequaled performance of the AUTO-ROLL  to be used in applications where heavy airborne particulates are being produced. GUARANTEED TO WORK New guidelines being established by NIOSH may require air inside your facility to be cleaner than the air outside.