Hey folks,

I'm building a DIY paint booth for my automobile garage and need advice on setting up a proper exhaust system. The booth frame is already up (approx. 23ft x 12ft x 8ft), and I’ve installed top lights and insulated walls.

Right now, I'm only using a single ceiling-mounted exhaust fan, but I know that’s not optimal for removing overspray and VOCs safely. I'm working with a tight budget and want to get it right without going for a full commercial setup.

My questions:

• Where should I ideally place the exhaust fan(s)? Top, bottom side, rear wall?
• What type of filters can I use before the exhaust? (homemade options welcome!)
• How much airflow (CFM) should I aim for for this booth size?
• Any tips for intake airflow to maintain balance?

Any diagrams, photos, or shared experiences would be awesome! ????
Thanks in advance — I really want to make this work well and safe.