What is a key benefit of mechanical ventilation?

Consistent air quality control is a key benefit of mechanical ventilation because it allows for the regulation and management of indoor air parameters, including the levels of pollutants, humidity, and temperature. With mechanical ventilation systems, fresh outdoor air is brought in while stale air is exhausted, providing a steady flow that can dilute indoor air contaminants. This controlled approach helps ensure that the indoor environment remains healthy and comfortable, aligning with standards for acceptable air quality.

In contrast, while reduced energy consumption could be a benefit of well-designed ventilation systems, it's not universal across all mechanical systems. Increased humidity levels would typically not be a desired outcome of mechanical ventilation, as it aims to control humidity levels and prevent excessive moisture build-up. Lastly, all mechanical systems require some level of maintenance to function effectively and safely, so the idea that maintenance can be eliminated is misleading.