ClearVac® The "Clear" solution for a Smoke-Free O.R. The ConMed ClearVac® is: Comfortable: Advanced styling of attachment cradles the electrosurgical pencil and creates an ultra- comfortable grip. Lightweight tubing takes the bulkiness out of these smoke evacuation pencils. Simple to Use: Connects directly to the AER DEFENSE™ or System 1200™ smoke evacuation filters.