What is the recommended ventilation rate of clean air per occupant in enclosed spaces?

The recommended ventilation rate of clean air per occupant in enclosed spaces is often derived from guidelines aimed at ensuring adequate indoor air quality for health and comfort. The selected answer reflects a commonly accepted standard in various building and health regulations, suggesting that each occupant requires a ventilation rate of around 200 cubic feet per minute (cfm). This rate helps to dilute indoor contaminants, reduce the concentration of airborne pathogens, and contribute to a comfortable indoor environment.

Ventilation is essential in enclosed spaces to manage pollutants such as carbon dioxide, volatile organic compounds, and other airborne particles that can accumulate due to human activities. The 200 cfm rate is designed to support a healthy environment, particularly in spaces with higher occupancy levels or where activities generate more contaminants. This standard is backed by research indicating that higher ventilation rates can significantly improve air quality, thus enhancing the overall well-being of the occupants.