ok wasnt sure where to put this exactly so I put it here (please move if there is a better spot mods) Ok, I live in a built-in basement room with my pc's, but one thing ive noticed after having my pc's on for long periods of time is that the air quality in the room begins to feel different; It feels sort of "stail" (for lack of better wording). Now I am planning on setting up a dedicated server soon (in the same room) which would be on 24/7 and the air quality of the room seems like it might become a concern. Now my first question is: 1. What is the reason behind the "stail" feeling air? Is it just because the air is heated from the cpu and/or dust being pushed into the air from the cpu fans that the air gets this "stail" feeling? A solution I thought about was attaching some form of vent system onto the back, out-blowing case fans which goes up into the tile ceiling then back down on the other side of the room wall where it would release the unclean air into the next room which is used more for storage. 2. Is there even a more simple solution such as some form of air pureifier? If so, what kind of air pureifier would I need? (I had this one thing that claimed to be an air pureifier once which did nothing) Any suggestions or comments about this would help out greatly. Thanks!