Calculate Air Exchange (CFM)Use the calculator to determine the Air Exchange (CFM) required to adequately ventilate an area.
Enter information into the fields below in order to calculate the CFM (per fan).
To calculate the CFM required to adequately ventilate an area, we divide the room volume by the appropriate "Minutes per Change" value.
[CFM] = [Room Volume] / [Min./Chg.]
|Airflow (CFM) per Fan|
* Asterisks indicate required fields.