When assessing airflow in a building, what important measurement is taken in CFM?

When assessing airflow in a building, the measurement taken in cubic feet per minute (CFM) refers to the volume of air moved per minute. This measurement is essential because it indicates how much air can be exchanged in a given space within that time frame, which is crucial for maintaining indoor air quality, thermal comfort, and energy efficiency. Knowing the CFM helps in designing HVAC systems, determining ventilation needs, and identifying areas where airflow may be inadequate or excessive.

While pressure, temperature, and humidity levels are also important factors in building performance, they do not directly measure the volume of air movement, which is the significance of CFM in this context. Understanding airflow through CFM can lead to better building performance and occupant comfort by ensuring that sufficient air is being circulated and replaced as needed.