Finally, I can sleep while my house burns to the ground.
About 20 percent cooling, and 80 percent extensive, I'd wager.
Not seen: a group of 12 men blowing their darnedest into the duct.
Once upon a time this fan lost it's rear motor housing, exposing its dangerous electrical intimmers. My dad promised me he would fix it, and he sure did!
Born of necessity on a 100+ degree day with no AC.