Unfortunately, this air compressor didn鈥檛 work out for me : as I turned the unit on , it would go to 135 psi , then released some air ( with no tool attached ) until 100 psi, the engine would kick in again to bring the pressure back to 135 psi and 鈥︹.again some air would be released until 100 psi and the engine would kick again鈥! This cycle would last 3 times and after that the air compressor wouldn鈥檛 turn on at all . This whole exercise lasted about 3 to 5 min . I suspect that the on switch or the overheat motor protection was faulty . It鈥檚 a shame since the unit is well built and very quiet. The initial tank air filling up took about 1 min, the overall noise level was very low . Didn鈥檛 seem very reliable