Which aspect of building design can significantly affect indoor air quality?

Ventilation and airflow are critical components in determining indoor air quality because they directly influence how air circulates and is exchanged within a building. Proper ventilation systems can help to dilute indoor pollutants, bring in fresh outdoor air, and efficiently remove stale air. This ensures that harmful contaminants, such as volatile organic compounds (VOCs), carbon dioxide, and particulate matter, do not accumulate to levels that could harm occupants' health.

Effective airflow also helps to maintain comfortable humidity levels, which can prevent mold growth and create a healthier living environment. Without adequate ventilation, indoor air can become stagnant, leading to poor air quality, increased discomfort, and potential health issues for occupants. Therefore, optimizing ventilation and airflow is essential for creating a safe and pleasant indoor environment.