Cubic Feet Per Minute (CFM) is a measurement of airflow that indicates how much air a fan or HVAC system can move in one minute. It’s essentially the volume of air that passes through a space per minute, which helps ensure adequate ventilation and temperature control in your home. Proper CFM levels are essential for comfort, energy efficiency, and the overall health of your HVAC system. If the airflow is too low, your rooms might not receive enough heating or cooling, leading to uneven temperatures. Conversely, too much airflow can overwork your system and increase energy consumption.