Labconco Protector 3944300 User Manual page 21

Chapter 4: High Performance Features and Safety Precautions
1. Aerodynamic Clean-Sweep™ Air Foil has a unique low profile
shape that allows air to sweep the work surface for maximum
containment. The Clean-Sweep™ openings create a constant
protective barrier from contaminants. In addition, 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 Figure 4-2.
2. Containment-Enhancing Upper Sash Foil includes a perforated
air passage directly atop the sash foil to bleed air into the hood
chamber and direct chemical and powder concentrations away from
the sash opening. The radiused sash foil sweeps airflow into the
hood with minimal turbulence. See Figure 4-3.
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Figure 4-2
Figure 4-3
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