I have a very old Bink diaphragm type airbrush compressor that sits on the shelf beside my workbench. I suppose most would consider it to be rather quite, but it is louder than I'd like, and really doesn't have much ooph at all, maxing out at a bit under 25psi. I do have it plumbed into a 10 gal air tank, so it does build up a substantial reserve to run larger engines for longer that way. I also have a Chinese pump for doing tires and the like, that has a small reservoir and works up to a bit over 100psi, that I got for $5 at a yard sale, but it is terribly loud and unsuitable for workbench usage.