This is a project I made to help me with soldering. Because breathing smoke is not nice.
This is the mechanism to set the direction. It can just be set up or down.
this is the circuit. It's very very simple. I only need 1 AA battery because it's designed to spread away the smoke. It doesn't need much power or speed.
this is the screw mechanism.
KISS
Simple and effective.
I use an old processor fan powered by a 9V wall wart.
I’m kinda fond of solder smoke
I spent many years soldering in the service. I’m rather partial to the smell of burning flux 
yeah, i’m kinda not
yeah, i’m kinda not interested by the smell , but the smoke is really dangerous if inhaled, worst case scenario being paralysis and death:pokerface:
Well, too late now 
After 10 years of soldering under a microscope, I think anything bad would have already struck. Nowadays, I only solder when I can’t breadboard it.
