PAPST Type 4112 N/2H
Special thank to Utnorris for sponsoring this fan..
A unique metal frame fan (Blades are plastic) that runs backwards. It has a really low dbA/CFM ratio at 5V, but it resonated at 6V and climbed up quickly. Definitely has some motor noise, but these microphones are extremely sensitive, so it's probably not as strong as the audio makes it out to be.
I would recommend running it at 9V and above to minimize the motor noise. It's too bad 5V doesn't have a smoother motor sound, it did really well at that point in noise level. I do like the all metal frame, and it's fairly efficient.
VIDEO LINK
http://www.youtube.com/watch?v=rzVLk59z5BY
COMPARED TO ALL FANS TESTED SO FAR
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