The model 86ASB5D4C is designed to work in tight areas, on scaffolding or any job site where a rugged steel compact vacuum is required. Easy to carry and transport.*All HEPA & ULPA Vacuums sold by SPYCOR meet or exceed OSHA/EPA critical filter standards. HEPA fitlers are individually tested in accordance with IEST-RP-CC001 standards. ULPA filters are individually tested in accordance with IEST-RP-CC007 standards.