Steel & Poly Vacuums are used in industrial wet/dry tank vacuums with HEPA conversion kits. Its features are HEPA filter system, tank styles, holdown clamps, cold rolled steel tanks, HEPA filter rating, and powerful motor heads. It is designed for the removal of lead, mold, ceramic dust, aluminum, fiberglass and many other hazardous materials. It is used in clean rooms, hospitals, and industrial plants or wherever air and dust pollutants exist.