The TurboVap 500 Concentration Workstation is a closed cell evaporator that provides automated sample concentration using a helical gas flow and sensor endpoint detection technology. The “helical flow” of air is created by a motor-driven fan. The solvent vapors rise and enter the condenser, condense on the side walls, then run out the drain into a suitable waste or reclamation container. The two position unit accommodates 500mL vessels with either 0.5 mL or 1.0 mL endpoint stems.