Labconco Protector 3930000 User Manual page 27

Chapter 4: High Performance Features & Safety Precautions
1. Aerodynamic Clean-Sweep™ Air Foil has a unique shape that
allows air to sweep the work surface for maximum containment. The
Clean-Sweep™ openings create a constant protective barrier from
contaminants. Should the operator inadvertently block the airflow
entering the air foil, air continues to pass under the air foil and
through the Clean-Sweep openings. See Figures 4-1, 4-2 and 4-3.
2. Containment-Enhancing Upper Sash Foil includes an open air
passage directly atop the sash foil to bleed air into the hood
chamber and direct chemical concentrations away from the sash
opening. The radiused sash foil sweeps airflow into the enclosure
with minimal turbulence. See Figures 4-1, 4-2 and 4-4.
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Figure 4-3
Figure 4-4
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