After reading everything on this site about the EHM and the Provent, I
thought I would post some pics of an alternative that I made at home.
The plastic jar is packed with ChoreBoy and white filter material.
After about 500 miles it looked like this
The jar and filters were a bunch of extras I found at work. I got three of
those oval filters packed on top of the choreboy. It's not a perfect setup
but it works well. I've seen only very little oil residue on the outlet.