Air flow measure is a term used to describe the measurement of the rate of air movement. It is a measure of the amount of air that is moving through a given space or area over a period of time. Air flow measure is used to determine the amount of air that is being circulated in a room or other enclosed space. It is also used to measure the efficiency of air conditioning systems and ventilation systems. Air flow measure is typically measured in cubic feet per minute (CFM) or liters per second (LPS). It is important to note that air flow measure is not the same as air velocity, which is the speed at which air is moving. Air flow measure is used to determine the efficiency of air conditioning systems, ventilation systems, and other air handling systems. It is also used to determine the air quality in a given space, as well as the amount of air that is being circulated in a room or other enclosed space.