Hi, Tom. General rule of thumb is if the case fan is at or near the bottom of the case, you want to draw air in. At or near the top of the case, blow it out. In my experience, most fans in the front of the case are toward the bottom (air in) and vice-versa for case fans on the back. Hope this helps, Steve Sabljak > I have a new case in which I can add one 9cm case fan behind the lower > front panel. > > Question: > > This fan is reversible. Do I want to have it exhaust out the front, or, > draw in? Not sure which is better. ------------------------------------------------ Get the award winning ISP, AT&T WorldNet Service http://download.att.net/webtag The NOSPIN Group provides a monthly newsletter with great tips, information and ideas: NOSPIN-L, The NOSPIN Magazine Visit our web site to signup: http://freepctech.com