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Work at least six inches inside hood.
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Keep the hood clear of clutter. Keep the
amount of material in the hood to a minimum.
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Lower sash to lowest possible position.
Keep the sash between your face and the experiment.
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Avoid rapid movement in and traffic in front of
the hood.
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Elevate large equipment off the work surface of
the hood to improve air flow.
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Use an airflow indicator (tell tale) such as an
eight-inch strip of light material dangling from the sash.
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Run water in hood drains often to keep drain
traps full.
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Use a safety shield in addition to the hood sash
if a danger of explosion is present.
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Insure adequate illumination inside hood.
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For most effective fume hood operation, keep
laboratory doors closed.
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If you think that your hood is not functioning
properly, call your building's facility coordinator and report the
problem so that the repair process can be initiated.