How should every occupied space be ventilated?

Every occupied space should be ventilated by both natural and mechanical means to ensure adequate air quality and ventilation performance. Utilizing both methods allows for flexibility in achieving optimal airflow, accommodating varying conditions such as changes in outdoor air temperature, humidity, and internal occupancy levels.

Natural ventilation relies on passive air movement through windows, vents, and building openings, taking advantage of ambient environmental forces like wind and temperature differences. This method can be energy-efficient and cost-effective under suitable conditions.

On the other hand, mechanical ventilation utilizes fans and HVAC systems to effectively move air in and out of spaces, ensuring a consistent supply of fresh air. This method is especially crucial in areas where natural ventilation may not be sufficient, such as in tightly sealed buildings or during extreme weather conditions.

By integrating both natural and mechanical ventilation strategies, building designers can enhance indoor air quality, occupant comfort, and energy efficiency. This dual approach also allows for adjustments based on specific building requirements, occupancy patterns, and external environmental factors.