Not really that useful. The quoted high cfm numbers drop drastically once the fan/blower begins to generate even a small amount of static pressure.
I you really want to do this, save yourself some money and buy a 12V boat bilge ventilator blower for a fraction of the price. A 250CFM part can be had for less than $30.
Last edited by bos; 04-05-2006 at 07:41 AM.