What is the primary function of ventilation in an air conditioning system?

The primary function of ventilation in an air conditioning system is to provide outside air for dilution and oxygen. Proper ventilation is essential in maintaining indoor air quality by introducing fresh air from outside to replace stale air inside. This process helps dilute airborne pollutants, such as carbon dioxide, volatile organic compounds, and other contaminants that can accumulate in enclosed spaces. Furthermore, proper ventilation is crucial for ensuring that there is enough oxygen in the air, which is vital for the health and comfort of occupants.

While cooling the air, filtering contaminants, and controlling humidity are also important functions of air conditioning systems, they are more closely related to the system's cooling and dehumidifying capabilities rather than ventilation itself. Ventilation emphasizes the exchange of air between indoor and outdoor environments, which is fundamental to ensuring a healthy living space.