- Duct cleaning should only be undertaken as a last resort, after other measures have been exhausted.
- Duct cleaning should only be performed after a thorough evaluation of the system and the contaminant source has been identified and controlled.
- Prevent dirt, water, and other contaminants from entering ducts by utilizing preventative maintenance schedules and procedures, implementing good housekeeping practices, and ensuring proper location of air intakes.
- DOHS staff are available to assist in evaluating ductwork.