If ya know how to make one, it's great for your porch area...or as a secondary cooling system inside when it gets Dawg Hot.
I was thinking about it as the temp reached 100 outside...then thought, OH YEAH!! There's a way to keep things decent while I'm working on my lawnmower!!!
So I grabbed my big fan, placed an ice chest fulla ice & water directly in front of it...and VOILA!! MUCH cooler while working on the porch
There are more technical ways of doing it, but for the time I was out there, it paid off
Misting Fans do basically the same thing...without ice. I'm thinking one of those should end up permanently mounted on the porch soon