Buffalo Filter ViroVac DKVV-120 ESU Laser Surgical Smoke Evacuation EvacuatorBuffalo Filter ViroVac DKVV 120 ESU Laser Surgical Smoke Evacuation Evacuator Grade B. Functional used smoke evacuation accessory sourced from hospital surplus. Ideal for biomedical technicians, clinical resellers, and facilities needing a working unit. Reuse Medical is a Service Disabled Veteran Owned Small Business (SDVOSB) supplying hospital surplus equipment to biomedical techs, retailers, and healthcare facilities. Ships from Fresno, CA.