Which ventilation system is designed to remove air contaminants while circulating fresh air?

The balanced ventilation system is specifically designed to effectively remove air contaminants while also circulating fresh air into a space. This system works by providing a controlled exchange of indoor and outdoor air, ensuring that the amount of air entering the building matches the amount of air exiting. This equilibrium is crucial for maintaining indoor air quality since it mitigates the buildup of harmful pollutants and moisture while simultaneously bringing in fresh air.

Balanced ventilation systems often incorporate filters to improve air quality and may include energy recovery capabilities to conserve energy when exchanging air. By drawing fresh air in while pushing stale air out, they ensure a healthier living or working environment.

Other types of ventilation systems focus on different aspects; for example, exhaust ventilation removes indoor air but does not introduce fresh air, which could lead to negative pressure and decreased air quality over time. Supply ventilation brings fresh air in but does not necessarily address the removal of contaminants, which can lead to a buildup of indoor pollutants. Heat recovery ventilation, while efficient at exchanging air and recovering energy, may not adequately ensure that both functions (removal of contaminants and fresh air influx) are simultaneously optimized in the same manner as balanced ventilation.