The CFM should be posted on the fan's packaging or spec sheet.
CFM indicates the volume of air moving through the fan each minute. The higher a fan's CFM number, the higher the fan's volume or capacity. The higher the volume, the better the performance.
To measure the performance of an HVLS fan, engineers typically use the method approved by the Air Movement and Control Association (AMCA) and measure "thrust," which is the force the fan produces as a result of the air being pushed through it.
For comparison purposes, a 52? residential ceiling fan has a posted 5,873 CFM (running at high speed). An 8-foot MacroAir 6-blade HVLS fan, on the other hand, has an AMCA-certified 53,623 CFM. Our largest 24-foot HVLS fan has a 350,000 CFM.
Do you have other questions about HVLS fans and how they work? Post them below.
More Info: http://macroairfans.com