It doesn't get as warm here for as long at a time as it does in MD, but I went with a pedestal fan. A real pedestal fan, not a HF pedestal fan. 1/3 hp with ball bearings, 30" dia. cast aluminum modular air foil blades that sound a bit like an airplane prop (originally designed in the 30's, in fact, by Diehl, and in continuous production essentially unchanged since then), and presently made by Airmaster (which bought out Diehl), though they've got something going on with Grainger/Dayton, as it's an Airmaster with a Dayton motor and badge. But regardless, on high speed it blows a strong column of air from the back of my garage halfway down the driveway. On low speed I can hear the radio or have a quiet conversation but it still blows very strong. I put it on a 2x3 frame with casters so I can get to stuff stored in the corner, and so I can aim it at me when working on the boat, and I piled storage boxes on it so the floor space wasn't wasted by the 30" round base.
Saw it on ebay and was the only bidder. NIB, still strapped shut. Which may be why nobody bid on it, with just a picture of 100 lbs of cardboard box. Got it cheap, but Grainger lists it for nearly $900.
Airmaster is over $1k for the same thing with a different badge.
I considered a ceiling fan, but they don't move enough air to suit me (I don't do well in heat and like a strong breeze on me), and a typical box fan is just an anemic noise maker compared to a real fan.
For heat in the winter, I use a couple of old table fans to move the air around a bit and get it off the ceiling, but the ceiling is only 9 ft. Which is also why I ruled out a ceiling fan or two.
That doesn't answer your question, but it's an alternative to consider at least.