Calculating the CFM (cubic feet per minute) of an air handling unit is crucial for determining the airflow capacity of the system. Several methods can be used to calculate CFM depending on the requirements and factors involved. Here are a few approaches: System Capacity: The CFM can be calculated based on the system's capacity or the desired ventilation rate for a particular space. One way to determine this is by dividing the total volume by 60. For example, if you have a standard room with a volume of 4,800 cubic feet and you aim for two air changes per hour (ACH), the calculation would be 4,800/60 = 80 CFM. Velocity x Area: Another method involves calculating CFM by multiplying the velocity of air (in feet per minute) by the area through which the air is passing. This formula can be used when you know the required velocity and the area size. It is important to note that these calculations provide general guidelines, and consulting with HVAC professionals or referring to specific industry standards may be necessary to ensure accurate CFM calculations for your air handling unit. For more information about the CFM of an air handling unit, contact your local United Rentals branch today.