What is one of the basic methods of ventilation?

Mechanical draft is a basic method of ventilation that utilizes powered fans or blowers to move air through a space. This approach is particularly beneficial in situations where natural air flow is insufficient, allowing for controlled air exchange and improved indoor air quality. By actively drawing in fresh air and expelling stale air, mechanical draft systems help maintain desired temperature, humidity levels, and reduce the concentration of airborne contaminants.

In contrast, breezy exhaust typically refers to less controlled, passive methods of air removal that rely on natural winds or air flow, which can be inconsistent and less effective. Air conditioning, while it can provide ventilation, primarily focuses on temperature control and might not effectively address the need for fresh air exchange. Passive air circulation relies on natural convection or diffusion, which can be effective but often does not provide the same level of air movement as mechanical systems, especially in larger or more sealed environments where adequate air changes are crucial.