well if your making a makeshift paint booth then use a few fans with some filters just taped to them, that way you have fresh air blowing in and spots alittle dust/bugs, but mainly just giving you fresh air and keeping the overspray down. just put one fan on each side of the booth. one pushing air in and the other sucking air out. some of those cheap large house fans should be good enough.

but im just gonna paint my 94 outside in the open just cross fingers that no bugs like the wet shine! but if they do i guess its no big deal. its not gonna be a show car. i can deal with a "C" paint job, cause now its paint has a F-!!!!

 

I have painted quite a few items myself. I would never start with something major like a car. Practice and hone your skills on stuff you don't care about, like your tool box, the lawn mower, etc. I guarantee you will not be happy with your first few jobs, but practice makes perfect.