Unique Table Wednesday, November 14th 2018.
The main difference between a 4-blade and 5-blade fan is aesthetics, with some additional wind noise associated with 5-blade fans. For a given motor, a 4-blade fan will move more air than a 5-blade fan. The 5th blade puts additional drag on the motor, slowing down the RPM of the blades, which decreases the CFM. All Hunter fans, whether 4 or 5 blades, are designed for optimal air delivery.
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