Dayton Box Air Mover Fan

I have a Dayton 3C187C Air Circulator box fan. 115v, 7.75 amp, 2 speed fan with 36" blades. It's rated @ 8,300 CFM on low speed and a colossal 12,240 CFM on high!!!! Air speed at 40 ft is rated at 263 ft/min on high and 184 ft/min on low. The one I have is not pretty, but it won't cost the $1200 to $1400 a new one costs either.  Seriously. These things are going for $750 to $1000 used. If you have a barn, garage, green house you can use this to pump a lot of air through the building. If you have a dyno tuning buisness you can move 12,000 CFM through the bay and cool the cars or bikes.  Like I said, mine is not pretty, but you're not dating the thing, you're trying to move air. 2 Fans Availible