Cubic feet per minute (CFPM or CFM) is a non-SI unit of measurement of the flow of a gas or liquid that indicates how much volume in cubic feet pass by a stationary point in one minute.
It's almost irresistible sometimes.
how will you know what kind of fan does 30CFM etc.
The fan will have specifications like that listed either on the website youhow will you know what kind of fan does 30CFM etc.
which will have the best CFM for intake and outtake for the casing?