I was never a fan user until we started using the spin bikes at the gym between classes in the off season. I'm not a heavy sweater but at the point where the sweat is running into my eyes or I'm distracted from wiping it off, I need some help. At the gym that meant turning at least 1 of the fans on in the large empty classroom, and preferebly aiming one at me.
I'm just now setting up my indoor station and grabbed a single Honeywell fan (cheap amazon find). It seems to be just enough to keep me from dying. The particular bedroom I'm converting will get sunny and hot in the summer, but ideally then I'll be riding outdoors!