so long that you have a pressure regulator (with a psi meter even better) , a bigger compressor with a large storage tank even better... few minutes of compressing and you can use for the whole day or even longer.... you may need a water trap too.....

You can pressurize a tire's inner rubber tube to store enough air for a few rounds of painting, too...

some artist even forgo this... they use their lips and their set of lungs and just blow to provide the air pressure needed for painting with their airbrush..

This post has been edited by BeastX: Nov 23 2008, 05:23 PM

All you need is an adjustable pressure regulator, airbrush needs relatively low pressure, fittings & adaptors to down size or fit male to female threads so you can connect the pressure regulator and tubes to the airbrush... That's it...

U probably only need a regulator up to 0.5M Pascal or 73 psi, but usually around 20 to 30 psi will do fine...