What is the purpose of an air handler in HVAC systems?

The primary purpose of an air handler in HVAC (Heating, Ventilation, and Air Conditioning) systems is to circulate air throughout the space it serves. An air handler works by drawing in air from a designated area, passing it through various components, which may include filters, heating and cooling coils, and then redistributing the conditioned air back into the environment.

Although air handlers can contribute to air filtration, cooling, and humidity control through their associated components, their fundamental role focuses on air circulation. A well-designed air handler ensures adequate airflow within the system, which is crucial for maintaining temperature comfort and indoor air quality.