Which practice is crucial for maintaining clean air ducts over time?

Maintaining clean air ducts over time is essential for ensuring good indoor air quality and the overall efficiency of the HVAC system. Regular professional cleanings significantly contribute to this goal. These cleanings help to remove dust, allergens, and contaminants that accumulate in the ducts over time, preventing these particles from being circulated throughout the living space.

While other practices, such as changing air filters regularly or using fans for air circulation, might enhance indoor air quality, they do not substitute for the comprehensive cleaning provided by professionals skilled in duct cleaning. Regular cleaning not only improves air quality but also reduces energy use by allowing the HVAC system to operate more efficiently.