Which system is responsible for introducing fresh air into a space while removing stale air?

The ventilation system is specifically designed to bring fresh outdoor air into a building while simultaneously expelling stale indoor air. This process is crucial for maintaining indoor air quality, as it helps dilute indoor pollutants, manage humidity levels, and ensure a supply of oxygen for occupants.

Effective ventilation systems can utilize natural airflow, mechanical fans, or a combination of both to facilitate this exchange of air. They can be operated on demand based on air quality levels or run continuously to ensure a consistent air turnover.

In contrast, an exhaust system primarily focuses on removing air from a space, without necessarily introducing fresh air. The heating and cooling systems, while they may help regulate temperature, do not specifically address the need for air quality or the exchange of stale air for fresh air. Thus, understanding the function of each type of system allows for a clear recognition of the role of ventilation in creating a healthy indoor environment.