What is the primary function of the air filter in an HVAC system?

The primary function of the air filter in an HVAC system is to remove dust and other particles from the air. By doing so, it helps improve indoor air quality, making the air cleaner and healthier for occupants. This filtration process captures various contaminants, including pollen, pet dander, dust mites, and mold spores, preventing them from circulating throughout the living space.

A clean air filter also plays a crucial role in protecting the HVAC system itself. When the filter is clogged with debris, it can restrict airflow, leading to inefficiencies and potential damage to the system. Therefore, regular maintenance and timely replacement of air filters are essential for the system's optimal performance.

While enhancing air circulation, regulating temperature, and providing humidity control are important aspects of an HVAC system, they are secondary functions that may be influenced by the presence of a clean air filter, but they are not the primary role of the filter itself.