I'll chime in with additional---
My first air brush was a "Badger" brand and quite inexpensive, but still did quite acceptable work. I recently aquired another air brush and it has a much finer (lower volume) tip than the previous one.
It would take a long time to spray any volume with the latter, but it would be great for fogging, models, and chip filling. Perhaps great for spraying the dash or painting around a masked off windshield gasket. The "Badger" would be better for any larger object.
