What should home inspectors check in the air-handling system?

Checking the filter(s) in the air-handling system is crucial for ensuring air quality and system efficiency. Filters capture dust, dirt, allergens, and other particulates from the air being circulated throughout the home. A clean, functional filter allows for optimal airflow, contributing to better indoor air quality and efficient HVAC operation. When filters are clogged or dirty, they impede airflow, forcing the air-handling system to work harder, which can lead to increased energy costs and potential system failure over time.

While other aspects of the air-handling system, such as refrigerant levels, condensing units, and wiring connections, are also important, filters play a direct role in the air quality and efficiency of heating and cooling within the home. Regular inspection and replacement of filters help maintain an effective and healthy air-handling system.