The Mystaire Downflow Workstation is designed as stand alone, ductless unit that protects workers from powders or fumes. The workstations open design allows for close inspection of samples while maintaining a high level of operator protection. Particles or fumes are drawn downward through the stainless steel work surface and contaminants are removed by a series of filters. After the fumes or particulates are filtered, clean air is returned to the room.