A CFM meter for HVAC is a device used to measure the rate of air flow in a system. It is typically used to measure the amount of air that is being delivered to a particular space or area. CFM stands for cubic feet per minute, and it is a measure of the volume of air that is being moved through a system. The CFM meter is used to ensure that the proper amount of air is being delivered to the space or area, and that the air is being distributed evenly. It is important to have the correct CFM meter for HVAC in order to ensure that the system is running efficiently and effectively. The CFM meter can also be used to detect any potential problems with the system, such as a blocked air filter or a leak in the ductwork. Having the correct CFM meter for HVAC can help to ensure that the system is running at its optimal performance level.