Nice set up Sentinal. I was thinking of trying this same thing back a few years ago. I had one of those PC fans that pushed air through sideways. I ended up pulling the tiny wires out of the fan and they were to tiny to soldier back on. I ended up just going with a fan on top.
Anyways I just wanted to say I think you could have done it with just one fan. Would have only take maybe 10 seconds at the most to clear all the fog away moving from right to left.
__________________
|