PC case negative pressure question

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Seshwaan

Well-Known Member
Hi all,

Looking for some advice on negative pressure with regards to a carbon filter.

I am aware that there needs to be negative pressure inside the case in order for the carbon filter to work. It is my understanding that you create this negative pressure by having more exhaust than intake.

My plan was to have 1 intake fan and 2 exhausts however I don't think I can do that due to the proximity of both exhausts not leaving enough space for me to add carbon filters to BOTH of them..

My question is would I still be able to create negative pressure if rather than having 2 separate exhausts in 2 separate spots could I just make my carbon filter and have both the exhausts stacked ontop of each other both pulling air though the same carbon filter?

Thanks in advance!
 
coreywebster

coreywebster

Well-Known Member
It doesn't work like that. Fans don't stack up. They only as good as the weakest fan.
You can if possible use two fans side by side ducted to a Y fitting both fans sucking through the same filter. But no idea if that's possible not knowing your type of carbon filter and how your going to connect fans to filter.

You could just do away with the intake fan. Passive intake.
 
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Seshwaan

Well-Known Member
Ahh ok, i did think that was a little too good to be true! I do have a fan controller for these so do you think just simply having the exhaust fan running considerably higher than the intake would work?
 
Chech

Chech

Member
If it helps my space is 1footx1footx2.5foot and i have passive intake with one pc fan for exhaust through a carbon filter, works wonders, whats the stats of your fan?
 
Jeremy Pivens

Jeremy Pivens

Well-Known Member
If you aren't building up enough negative pressure use duct tape to partially cover your passive intake, will pull a little harder.
 
S

Seshwaan

Well-Known Member
Chech said:
Its one i baught on ebay , it was a 100mm x 150m one, check my grow youll see it,

As for the noctura fan i chose to go cheaper ( vadar ) what one did you get exactly ? they are my next buy ...
Click to expand...
I got the NF-F12PWN, link to amazon on that last post mate
 
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