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what is CFM

post #1 of 23
Thread Starter 
what is CFM higher the better??
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post #2 of 23
cfm is how much air a fan pushes, so yes higher is better.
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post #3 of 23
Cubic feet per minute. the higher the better but usualy the higher the louder
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post #4 of 23
Cubic Feet per Minute. So yes. The higher, the better. And generally the noisier.
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post #5 of 23
beat you all to it
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post #6 of 23
CFM - Cubic feet per minute ft^3/m, represent the volume of air transfered in a minute. Used to describe performance of fans and such.

And yes, the higher the better, typical CFM is around 40CFM.
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post #7 of 23
Quote:
Originally Posted by roy956
what is CFM higher the better??
Cubic Feet per Minute, and yes the higher the better, but with a higher CFM rating usually means more noise
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post #8 of 23
Thread Starter 
ok thanks.. its because i wanted to get one 120mm for the front of my case.

Comp Us@ has one 100 cfm 2 ball fan. so i was interested in getting that one
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post #9 of 23
CFM = Cubic Feet Per Minute. Usually refers to fan flow rate. Higher is better if you have good fan placement in your case. If you have poor fan placement, including turbulence from outside grills, blocking wires or connectors, a higher CFM won't make much of a difference.

For me, a good fan has a high CFM and low db (decibal). How many times have you heard people complain that when they startup their rig it sounds like a 747?
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post #10 of 23
Quote:
Originally Posted by roy956
ok thanks.. its because i wanted to get one 120mm for the front of my case.

Comp Us@ has one 100 cfm 2 ball fan. so i was interested in getting that one
How much is it? And what is it? Newegg usually has better deals even after shipping.

Also keep in mind code for a bathroom fan in the United States in 50CFM or greater.
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