0p0rat0r
Member
![1zhelp :1help: :1help:](/data/assets/smilies/1zhelp.gif)
So I built myself a carbon scrubber from this tutorial: http://icmag.com/ic/showthread.php?t=31679&highlight=diy+carbon
My fan is a 105 CFM centrifugal inline 4". I'm using a 4" core and a 5" shell so I've only got 1/2" carbon layer. My filter is also 2 feet long. It worked great for the first day or two but I've been informed the smell is returning.
I'm pushing air into the filter because I don't have room to put the filter inside my small rubbermaid setup. When I put my hand over the filter to feel where the air is coming out it seems to be strongest at the end furthest away from where the air enters. It's like the air just blows through the filter hits the end and then decides to mostly exit near the end.
I'm wondering if maybe my carbon scrubber is too long for my small fan since the air seems to be mostly escaping towards one end. I was thinking building an over-sized filter would be better to prevent the air flow from being restricted too much but maybe it would push air out more evenly with a smaller filter? Anyone out there successfully getting away with using 1/2" layer of carbon?