The Tiger-Vac AVSD Dust Extraction/Vacuum Sanding Kit System, known also as the AVSD-40L (4W) HEPA SK, was designed for recovering designated dry substances and hazardous dusts such as asbestos, lead, silica and mold. The air operated, static dissipating extractor features a HEPA filter, stainless steel SAE 430 body and recovery tank and is mounted on a 2x2 cart for easy maneuverability. The kit is ready to use and includes disposable filter bags.