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Chapter 4: High Performance Features and Safet
y
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 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, powder and
particulate materials away from the sash opening. The
radiused sash foil sweeps airflow into the hood with
minimal turbulence. See Figures 4-1 and 4-4.
Figure 4-3
Figure 4-4