Go to harbor freight and buy this:
I use this with my CWT and another one for my COLEX.
All the quite compressors that I've seen from just about every brand all use the same motor/compressor. Looks exactly the same
Before the harbor freight one I had a California air that lasted about 5 years, the motor/compressor on the california air is the same exact one as teh harbor freight.
I also have a no name chinese compressor that came with my laminator and once again it has the same exact motor/compressor as the california air
Bigger ones available too: