I'm making a very rough painting and drying booth and I think I'm going to need some ventilation for my acrylic paint airbrushing.
From my searching on this website and reading the label of my Testors MM acrylics, these acrylic paints are NOT flammable. As for the thinner, paint cleaner, etc. that may be another story...
So assuming I only use Testors MM acrylics (and don't have it thinned, don't use enamels, etc.), I don't need to worry about a fire risk, do I? Whether it be from an arcing motor in my fan, using my mini blowtorch, etc.