Hemmings on MSN

Does an electric fan’s CFM rating matter?

Open any parts catalog (or online) and you will see all kinds of electric cooling fans for sale. “Get a 16” radiator fan for ...
Star Tribune

The Makeup Air Myth About Hood Fans Over 300 CFM and How To Calculate Makeup Air

The Makeup Air Myth About Hood Fans Over 300 CFM and How To Calculate Makeup Air There's a general consensus among those 'in the know' that makeup air is needed any time a kitchen exhaust fan rated ...