If its one thing I've learned, CFM means nothing if the fan creates low air pressure. All that air has to change course constantly, wind around all kinds of obstacles, and is forced through small openings and vents. This can take a heavy toll on the CFM that a fan produces and this is why air pressure is so vitally important.
I'd like to see a review of the air pressure verses CFM and dba, that these fans create.
And why isn't there any Delta fans in this review? There's also some other great companies that aren't even mentioned in this.
An excellent job none the less, but still I really want to see someone take air pressure into account for once and have more companies included in a fan review.
Also keep in mind what different types of designs are for. Some are for high air pressure but low CFM, such as those turbine designs, while others are designed for high CFM and low air pressure conditions when there isn't much blocking the air flow. Those louder more powerful fans are designed to create a lot of CFM and air pressure, which is useful for servers and other high performance computers. Some are designed to push the air in a more narrowly aimed direction while others are meant to spread it out over a wider area. Of course the way all of these fans are individually designed can impact how much noise they make and how efficient they are for their intended purpose, no matter what that intended purpose is.
The bottom line is different fan designs are intended for different types of uses, and its important to know what each fan is designed for and how well each fan excels at its intended purpose. Its important to know this information because people buy the wrong fan for the wrong job all the time, then wonder why it doesn't work as well as they thought it would for the purpose they intended it for.
I don't think I've ever seen most of this information included in a fan review, even though this information is very important.
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