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Replacing the carbon filters, HEPA filters, and fluorescent light is the
primary routine maintenance required.
Review this chapter on maintenance for the following:
• Routine Maintenance.
• Determination of when to replace carbon filters.
• Determination of when to replace HEPA filters.
• Install carbon filters and/or HEPA filters.
• Set Filter Life and Filter Check Timers.
• HEPA filter leak test.
• Reset or change the inflow face velocity, if necessary.
• Initial Certification.
• Re-Certification.
• Fluorescent light replacement.
• Motorized impeller replacement.
• Main control board replacement.
• Organic sensor board replacement.
Routine Maintenance Schedule
Weekly
• Wipe down the interior surfaces of the enclosure with a suitable
solvent, disinfectant, or cleaner, depending upon the usage of the unit
and allow to dry.
• Using a damp cloth, clean the exterior surfaces of the enclosure,
particularly the front and top to remove any accumulated dust.
• Operate the exhaust system, noting the airflow velocity on the display
and airflow through the enclosure using a source of visible smoke.
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