AirClean® Systems Type C PowderSafe ductless balance enclosures incorporate the airflow dynamics and HEPASafe™ features of the PowderSafe Type B with the user-friendly features and chemical fume containment capabilities of an AirClean Systems ductless fume hood. Thermally-fused polypropylene construction makes the PowderSafe Type C enclosure perfect for weighing powders or solvents.