My 30 plus years old Craftsman compressor has reached it's retirement age. It is an oil less unit that I have rebuilt twice. It still works but I hate the noise. It sits right next to the mill and when it kicks on it always scares the crap out of me. It has a 30 gallon tank and is somewhere around 8-9 cfm at 90 psi. I would like to have one a bit larger, perhaps 45 to 60 gallons and 9 or more cfm at 90 psi. The noise is the main reason mine has to go. Before I wore hearing aids it didn't bother me so bad but now I literally jump every time it goes on. I have seen some ads for some "quiet" air compressors (70 db or so). Has anyone here had any experience with them. From what I read, they run slow (1650 as opposed to my 3450 oil less unit) and the compressors are relatively small. They achieve higher volumes by simply adding more compressors. Any information or direct experience with these type of units is appreciated.