small spray jobs (spray bomb, outside paints) that may be okay.... Airborne paint, certainly when you get into heavy metal stuff you need to contain it when inside or have very good ventilation. Lots of threads on building some 2x4 and painting drop plastic "booths". Can't say I haven't done some.
As Lanny mentioned its one of the serious concerns, of it igniting on larger projects or the serious later health concerns. Wear good respirators, protect yourself (for your health).
If you are a small shop you could use one of these.
https://www.youtube.com/watch?v=ZpyobmR2xrA
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