How do you calculate ventilation based on occupancy?

The appropriate method for calculating ventilation based on occupancy involves considering the airflow requirements per person. Specifically, the value of 15 cfm (cubic feet per minute) per person reflects the minimum ventilation rate recommended for indoor air quality. By multiplying this rate by the total number of occupants, you can effectively determine the total ventilation required for the space. Additionally, including the number of bedrooms in this calculation acknowledges that certain areas in a dwelling may have specific airflow needs based on their function and occupancy, thus ensuring that the overall ventilation strategy is comprehensive and aligned with occupancy levels.

Understanding this method is critical for maintaining healthy indoor environments, as inadequate ventilation can lead to poor air quality and associated health risks. Therefore, focusing on the per-person ventilation rate and considering occupancy levels allows for a more tailored and effective approach to ventilation in residential spaces.