In ductwork, what does the acronym 'CFM' represent?

The acronym 'CFM' stands for "Cubic Feet per Minute." This term is widely used in HVAC (Heating, Ventilation, and Air Conditioning) to quantify the volume of air that moves through a duct system or is delivered to a space over a specified period. Understanding CFM is crucial for properly sizing ductwork, selecting fans and blowers, and ensuring adequate air distribution and ventilation in commercial and residential buildings.

Using CFM as a measurement enables professionals to assess airflow rates and maintain appropriate indoor air quality. It is vital for system design and performance efficiency as it helps in determining how much air needs to be conditioned and delivered to different areas.

Other options do not accurately represent standard terminology within the HVAC industry. For example, "Cubic Feet of Measurement" does not convey the time aspect essential for airflow, "Central Feet per Minute" is not a recognized term, and "Controlled Flow Measurement" lacks the specificity and established meaning associated with the measurement of air volume in ducts. Therefore, the correct choice emphasizes the importance of airflow volume and time in HVAC applications.