What does CFM stand for in HVAC terms?

In HVAC (Heating, Ventilation, and Air Conditioning) terminology, CFM stands for Cubic Feet per Minute. This unit of measurement is used to quantify the volume of air that is moving through a system, such as ductwork, fans, or ventilation systems, in one minute. Understanding CFM is crucial for ensuring adequate airflow in a building, which directly impacts energy efficiency, comfort levels, and indoor air quality.

In HVAC design and operation, the CFM rating helps engineers and contractors determine the appropriate size of fans and ductwork necessary to achieve the desired airflow for heating or cooling specific spaces. A proper CFM calculation ensures that a system can effectively circulate air throughout a building, preventing issues like hot or cold spots and supporting overall performance.

The other choices, while they may sound plausible, are not standard terminology used in the HVAC industry. Thus, they do not accurately represent the concept of airflow measurement as effectively as Cubic Feet per Minute does.