Dustless HEPA Wet Dry Vacuum CERTIFIED HEPA: Individually tested, certified and serialized HEPA filter. EPA RRP OSHA COMPLIANT: Complies with EPA RRP and OSHA laws and regulations concerning hazardous material pickup. SAFE FOR HAZARDOUS MATERIALS: Certified safe for asbestos, silica, lead paint, and hexavalent chromium pickup and containment. COMPLETE CONTAINMENT: Will never blow dust or pickup back into the air. WET AND DRY VACUUMING: Safely go back and forth from wet to dry pickup, including water, without switching filters.