Filter Input/Output?

[herdmaster]

Somewhere I read that the efficiency of fans can be effected
by where the filter is placed. Anybody heard this and what is more eficient, filter on Input or Output side?

 

[whitelight]

a filter's purpose is to filter the air coming into the case so that there is less dust. if there is a filter on the exhaust fan, it will hurt the fan's performance (by blocking airflow), and will help keep your case clean. if you put a filter on the input fan, you'll get a cleaner case, but airflow might also be affected. sometimes you can damage a fan if the filter isn't porous enough, but the places online that sell filters usually check these things out and sell you filters that won't hinder fan performance too much. one place that does this is 1coolpc.com.

 

[aolsuxs]

So would you put filters in both your exhaust and intake fans or would you just put it in one or the other?

 

[Electric Amish]

No, he means on the front (intake) or rear (exhaust) side of the fan itself.

I've always used mine on the front of the fan.

amish

 

[klein297]

I can see how unobstructed blades could be more efficient but like Amish I always mount the filter on the front of the intake fan. Keeps the dirt off the bades ( which would probably reduce the fans efficiency}.

 

[RupTheKid]

filters do in fact reduce performance - depending on the density of the material , on average 25-35%. They also help to insulate from the noise a bit. Make sure you plan your airflow accordingly. Filters are worthless on the output side - why would you let all the dust get into your computer? You want to mount them for the intake, in an easy to remove / clean area. 2Cooltek.com sells dishwasher safe filters - or you can make your own with cheesecloth etc.

Hope that helps


Rup