User guide

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Chapter 6: Maintaining Your Protector Fume Hood
Routine Maintenance
Schedule
Weekly
• Using ordinary dish soap to clean the surface
inside of the fume hood, and the work surface.
• Using an appropriate glass cleaner, clean the
sash and all glass surfaces.
• Operate the fume hood blower, noting the
airflow velocity through the hood using a source
of visible smoke.
Monthly (or more often as required)
• Determine the actual face velocity through the
sash opening of the hood where the average
reading should be at the specified velocity. (Use
calibrated thermal anemometer or other
approved apparatus).
• Using a damp cloth, clean the exterior surfaces
of the hood, particularly the front of the hood, to
remove any accumulated dust.
• Check all service valves, if so equipped, for
proper operation.
• The hood baffles should be checked for
blockages behind them to ensure that the hood is
maintaining proper airflow.
• All weekly activities.
Annually
• Replace the fluorescent lamps.
• Have the fume hood recertified by a qualified
certification technician. See Certifying the
Protector XL Floor-Mounted Fume Hood in
Chapter 3.
• All monthly activities.
Biannually
• The sash assembly should be checked to ensure
proper operation and to make sure there are no
signs of abnormal wear on the sash pulleys,
cables and clamps.