California Air ToolsCAT-60040CAD 4.0 HP Ultra Quiet and Oil-Free Air Compressor, 60 Gallon Steel Tank, 75 dBA Noise Level

Talk about quiet WOW!!! And the performance is wonderful. This is the Bentley of air compressors. Well worth the extra cash!

First thing, it arrived 2 days early. Although it is too soon to see how well it lasts I am totally amazed with the quality and workmanship in this compressor. The welds are perfect, the motors all are tight, there were no air leaks from the moment I fired it up. Stainless steel braided lines, complete with regulator and auto water drain. All I had to do was screw on the air filters and plug it in. When they opened up the truck I was shocked to see the compressor laying down! You cannot lay down an oil based compressor but this is OILLESS. the driver explained that with the oilless ones there company would rather lay it down properly rather than have it fall over. Again, someone taking an extra step and having pride in what they are doing. . And it really is quiet. Quieter that my little pancake style compressor. As I said, it is too early to tell how long it will last but my first impression is that it will last a long time for what I have in mind with it. Would definitely recommend 100% and would definitely buy again. Great product. And customer service was right on top of things when I sent a few emails with questions. They got back to me in about an hour or two. Happy customer, very happy.

Owned this unit since November 2019 and it gets used at least 2-3 days a week every week since new roughly 6 years ago. I have air lines run throughout my shop and hose reel outside in the driveway. I use it for filling tires on vehicles I work on or my yard equipment, for blowing things off as cleaning or myself after mowing/edging, sometimes use air tools like a cutoff wheel or die grinder, drying off my dirt bike after washing, etc etc. It's pretty quiet compared to other compressors for sure but it's not "quiet" per se. You can still somewhat have a conversation near it while running. There are some small leaks on mine that I have tried to block off completely but every 24-36 hours I will hear the motor kick back on from a slow leak. It is set to turn back on at 90psi I usually just leave it full at 120psi so it's always ready to go whenever I need it.

DO NOT BUY!! My shop is suffering for a defective conpressorAt this price of almost $5k , it is totally uselessI reported the problem withing 2 hours of receivingCompletely inspected the unit before install, had to modify my power system to accommodate the specific power cable plug , it does not support the rated air flow suggested by manufacturer, and its banged upShipping containment was perfect, all defects were from manufacturerNow im stuck with it or I have to pack it up and send it out and wait 5 weeks for replacementWe can not run our auto shop with out a compressor! 😠

Quiet. Seems to work really well. Low amp draw should make it cheaper to use. Packaged well and put where I needed it. The guys were great. Not trained very well. But great attitude. Could have given a heads up. But worked out.

I had a Craftsman oilless for 29 years that threw a rod. That thing was so loud I had to wear ear protection. I was skeptical about the noise level this was advertised at. I need a decent sized compressor for my shop and looking around at more conventional compressors in this price range. What it came down to was getting a compressor this size to my garage. These things are all top heavy and I didn't want to have to go to a dock and have to have it loaded onto my truck then figure how to get it off the truck and into my shop. Amazon saved the day, free shipping to the house for the exact same price I would have paid straight from California Air! Two guys in a box truck and lift gate brought it here and put it into the shop.This thing has the auto drain on a timer, dual compressors on the top. They can run at a lower RPM than the old style thus keeping the noise down. Another great fact is the power required to run it. A 20Amp double pole breaker does the trick. Many compressors this size require a larger motor to turn the multiple stage compressors, upwards of 40-50 amps on some. Check the power requirements before you purchase!The noise levels in the pictures, 79dB is 1 foot from the top of the copmpressor and the 72dB from 12 feet away. The last is how it is shipped, on a full size pallet with a cardboard box over it. Plenty of room to keep a dock worker from spearing the tank with a truck fork. Arrived safe and sound.

Noise is a big concern for me as i like to be able to think while working. CAT does a good job in that department, but as the compressors age, the noise grows comparable to any other decently quite compressor. Ive enjoyed the smaller CAT compressors before i purchased the big one here. As things settled into my compressed air needs, i purchased the bigger one knowing i would be using it at or below its duty cycle. Tonight, im afraid to say i can hear the valves failing, less than 9 months into my purchase.

There is a lot to love about this compressor. Firstly and most importantly: yes, it's quiet. Like the quietest compressor I've ever been around. You can see by my photo that I have it close to a wall and you can carry on a conversation with it on. You can hear your phone ring and even hear the radio while it's on. Second, the low power draw. This compressor only requires a 15a circuit which is half of what a big box store compressor would require. Third, it comes with an auto drain system that keeps condensation out of the tank by draining off a little during start up (which is, for a few seconds, louder than you'd expect) and it comes with a very nice pressure adjust valve with water separator. I've been working in a shop environment since I was old enough to hold an acid brush against tooling while my dad made parts on the lathe and how I wish we had something like this 40 years ago. I cannot recommend this air compressor enough.