Also a quick disclaimer just in case google kicked you out here on an airbrush search: This guide assumes that you’re working on painting miniatures, and as such will be needing a degree of precision and operating at lower psi. If you’re painting automobiles or doing spray-tans in your garage, you can probably get away with other solutions.
For example if noise is a problem, find out at what db range the compressor operates at. Keep in mind that your refrigerator operates at roughly 40db and a normal conversation will be roughly 60db. The db scale is logarithmic and for every 10 points the sound increases the sound will be 10 times louder. ‘Silent compressors’ should be around 55db or below, but expect to pay a lot more for the quiet.
Price $99 $244
I’d also like to say that I’m not targeting Grex as being a poor choice for your airbrushing needs. I've heard good things about Grex and I think my next airbrush purchase will be a Grex XGi.
Another solution is to get an air tank with compressed gas, and hook your regulator to that. It has the advantage of being silent when you're using it, and you can fill it with dry air
(avialable from welding or beverage supply companies) so you won't have problems with moisture.
I hope that helps those who are looking for a new setup, or wanted to upgrade their current compressor. Even the greatest airbrush in the world will still perform poorly without a solid compressor setup.
Mike M (cornumortem)