What is the primary function of the air handling unit?

The primary function of the air handling unit (AHU) is ventilation. An AHU is a crucial component in HVAC (heating, ventilation, and air conditioning) systems, as it is designed to circulate and condition the air within a building. Its main role is to bring in fresh outdoor air, mix it with return air from the building, and filter it to ensure good indoor air quality. This ventilation function is essential for providing occupants with the necessary oxygen levels and removing stale air, odors, and pollutants.

While AHUs can also play a role in heating, cooling, and humidity control as part of a comprehensive HVAC system, these functions are often secondary to its primary role of ensuring proper ventilation. By focusing on ventilation, AHUs help maintain a comfortable and healthy living or working environment.