An air CFM meter is a device used to measure the flow rate of air in cubic feet per minute (CFM). It is used to measure the air flow in ventilation systems, air conditioning systems, and other air-moving applications. The CFM meter measures the amount of air that is flowing through a given area. This is important for determining the efficiency of air-moving systems, as well as the amount of air that is being used. The CFM meter is an important tool for ensuring that air-moving systems are operating at their optimal efficiency. It is also used to ensure that the air quality in a given area is within acceptable levels. The CFM meter is a valuable tool for ensuring that air-moving systems are operating safely and efficiently.