How to prevent a computer from becoming dusty? [closed]

"The most important thing to do is to have some good filters on every fan that blows into the computer. In addition it can be very smart to have more fans that sucks in than blows out. This results in air going out of all the potentially unfiltered holes instead of in. Having a computer elevated a few inches, doesn't really help much. My brother had that, and his computer was full of dust when I checked it recently.

I have had this setup for years and the computer is pretty much dust free inside. Just remember to take out the filters and clean them once in a while for example by carefully vacuuming all the dust off of them. Should maybe be done 4 times a year. Maybe more, maybe less, all depending how much dust you have around :)

Personally I bought some filters that were specially made for 120mm fans (which I had), but I think that a friend of mine actually cut some pieces of a pair of nylon pantyhoses and I've been told it worked quite well. Haven't tried that myself though... so don't really have a clue :p"

"On top of the fans/filters, one of the more interesting ideas I've heard is to put silica gel packets (like those often shipped with athletic shoes) in areas that you don't mind dust (the bottom, away from the boards).

The idea is that you can decrease the overall humidity in the case, so the dust sticks less to the components, and more to the packets. That makes it a lot easier to clean."

"Alternative cooling methods such as water cooling can eliminate nearly all dust buildup. This likely isn't viable in your situation, but it is still a solution nonetheless.

You can also try to sweep/vacuum the floor often."
"Alternative cooling methods such as water cooling can eliminate nearly all dust buildup. This likely isn't viable in your situation, but it is still a solution nonetheless.

You can also try to sweep/vacuum the floor often."

"There are dust filters you can place over the fans and any vent holes. So long as you are not overclocking the system, the room is well ventilated, and the fans are working well, this should not cause problems with system cooling.

Here's a link to an amazon.com search for computer case dust filters:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=computer+case+dust+filter"

Used dryer sheets work well as dust filters over the intake fans. They need to be used though new ones have too much of the "smell good" stuff on the to let air flow well. As the others have mentioned a good clean area and/or "real" intake filters work as well.