HEPA/Activated Carbon Filter

Update 12/28/2016: Everything is printed and fits! I ended up going with a different fan because I was worried about the CFM not being sufficient. I updated the link below. I have not built my case yet, so I have not been able to test the efficiency of this filter, but I assume it to be plenty to serve the task at hand. Make sure you download the new files I uploaded, I made a few tweaks before printing to make sure everything lined up.

I designed a bracket and enclosure for attaching a 120mm