I was considering using one of my extra Laptop Pwer Supplies. Whatch think?
Specifications:
Input: 100/240 Volts AC 50-60 Hz
Output: 12 Volt DC 7 Amp (12V, 7A)
Old computer fans are brushless. The question is how much air do they move? They are designed to blow air over a little metal box. You will be asking it to suck a large quantity of air from a relatively big area and then blow it out some sort of ductwork. That’s a lot more work. If I were using computer fans I would get the biggest ones I could and use two or more of them. I used a squirrel cage fan from Grainger.
The laptop PS I referred to was to power the Bilge fan. It’s a brick type of PS, not like one found in a desktop PC.
Bathroom fans have had to be brushless and sparlless since the early '80s to meet building codes. I have been using a bathroom fan in my booth for over 20 years and no explosions! I have been a custom painter for all that time and have done thousands of paint jobs and used to use solvent paints almost exclusively.