Direct load to a 6 mil lined tank increases cleaning capacity, eliminates double handling of debris and reduces decontamination time. Equipped with U.L.P.A. (Ultra Low Penetration Air) filter which is 99.999% efficient @ 0.12 microns. State-of-the-art polypropylene lid assembly is acoustically designed to minimize noise down to 72 dba. Patented safety interlock system with a unique micro-switch. If the U.L.P.A. filter is not properly installed, the vacuum will not start. U.L.P.A. filtered vacuums for the safe recovery of asbestos, lead, mold, hexavalent chromium and other hazardous materials.