If someone suspects fungal problems within an HVAC system, what should be the first step toward confirming or denying their suspicions?
A visual inspection for fungi, as well as potential areas for growth, should be the first step. Such areas would include condensate pans, ductwork, cooling coils, humidification systems, and other areas that have the potential to contain dust and excessive moisture. It is also important to check for fungal growth on interior and exterior building surfaces, including furnishings and ceiling plenums.