De-stratyfying air

17'-11" cathedral ceiling in 15x20' great room, with 12/12 pitch.

It has been recommended to put a slow-moving ceiling fan up close to the ridge with reverse flow--to pull air off the floor and de-stratify the air. This should make the 2nd floor loft that is partially open to this volume of space more comfortable, too.

Any recomendations for fans that are small, and can accomplish this unobtrusively? Or a way to do it within the ducting? Or ERV-HRV?

I'm not a fan of big, ornate fans, esp when they cause a strobe-light effect from lights below. In this application, decision definitely driven by practicality, not esthetics.

Thanks for suggestions. --Mark

We've bought a few of these for some high spaces we have. They've worked well. They're quiet and not very noticeable. I think the single column of air would cause draft complaints if they were placed right near where people are sitting but if you've got a place behind furnature, or in a corner, they do work as intended.

http://www.airius.us/productsFreeHanging.php