The Best Oil-Free Air Compressor for Less

Best Oilless Air Compressor for Less

The Porter Cable Offers some outstanding air compressors with some amazing features. The combination of its compact size, reasonable price, and good airflow capacity makes these compressors a great choice for most buyers. The Porter Cable CMB15 is a nice oil-free air compressor from this company. This 1.5-gallon oil free air compressor is capable of generating 150psi. It runs a 2.0 SCFM at the rate of 90psi, which enables quick recovery time. One intriguing feature of this model is that it is quite portable – you can take it anywhere with ease, but the best feature is its durable oil-free pump. This makes it a low-maintenance unit. Overall, it’s one of the best oil free air compressors for your money.

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Top Features in Air Compressor Oil Free Porter Cable CMB15

Like other oil-free air compressors manufactured by Porter Cable, the CMB15 has a combination of some great features and impressive specs.

Maximum Tank Pressure:

The first noteworthy thing about this oil free compressor is its tank pressure. The max tank pressure is 150PSI, which means it has the potential to store enough air to run for quite awhile. It is important to mention that smaller tanks can hold up to 90 PSI. It allows them to run only small air tools. With 150PSI, the CMB15 doesn’t disappoint in this regard.

Air Delivery:

The compressor has only one piston available to deliver air to the tank. The compressor comes with a standard CFM of 2.0 on 90 PSI and a Standard CFM of 3.0 on 40 PSI. If you want to calculate your total CFM usage, you have to add up all the tools together.


Most air compressors are rated according to their total horsepower. The Porter Cable CMB15 motor has a total HP of 0.8. You will need to consider how much horsepower you will need your air compressor to have before you purchase this.


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Tank Size:

This unit is very small and compact in weight and size – this helps in making it the best oil-free air compressor. It will make it very easy to move around, too. The total tank size is 1.5 gallons, which is lots of air, but won’t take up too much space. It looks compact, but it can handle many powerful tools. This Porter Cable also has a drain valve attached to it.


This is a very important part of an air compressor. The Porter cable CMB15 only has a one-stage pump without any oil used in it. Its non-stick piston automatically lubricates its cylinder. Without any oil, the machine is quite light in weight.

Power Source:

This oil-free air compressor runs on electricity, which makes it quite convenient to use. It can run anywhere with an outlet. The most wonderful thing about the electric compressor is that you can use it indoors without having to worry about harmful gasses. Porter Cable CMB15 has a low amp 120 V motor and you have no need for an extra cord. You will be happy to know that cold weather doesn’t affect its start up, either.

Noise Level:

You can easily call it a fairly silent oil-free air compressor. Porter Cable CMB15 makes no more noise than an average vacuum cleaner. This low sound level will help you work in a peaceful environment unlike other units.

Overall Dimensions:

The length of the Porter cable CMB15 is 15 inches, and its width is 13 inches. It’s only 21 inches high. As far as its weight is concerned, it is very light. It weighs only 20 pounds in total which means that anyone can move it from one place to another by themselves.

Added Features:

You will find it in many oil-free air compressor reviews that the Porter Cable CMB15 has many extra features that add to its overall value. The first thing that people love about this unit, is its quick recovery time. Secondly, the exterior design of Porter Cable CMB15 is completely enclosed. This allows you to move its parts with protection and safety, even at high temperatures. It provides you with an efficient working environment. The compact design is very sturdy, too. Its rubber feet provide you with a strong base. As mentioned earlier it very light in weight, so it can carried anywhere with the help of the handle on top.


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The Accessories that come with CMB15 compressor oil-free Compressor:

The Porter Cable CMB15 is one of the oil-free air compressors that will save you from buying certain accessories separately. The 25-foot nylon coil hose, inflation needle, hose adapter, tapered nozzles, and high-flow inflating and deflating device will save you a lot of time and money.

So, what are the flaws of this machine?

Of course, the machine offers many positive features and benefits to its users, but there are certain issues with this oil-free air compressor as well. Something that can be quite annoying for some users, is that they have to change connectors when using tires or air tools. Also, the nozzle included in the package lets air flow only when the valve is open. Some people even find the air hose quite chintzy. The good thing though is that you can replace it with ease – the replacement will make this unit work perfectly.

What about Using the Compressor in Different Situations?

Although it is still an entry-level compressor, it is better than many oil-free compressors and helps with many DIY projects. Many people have actually used this air compressor for blowing filters and parts on lab instruments. It is quite impressive how it performs so many different tasks, but if you’re using it with lab instruments, you may have to buy additional accessories.

Interestingly enough, some people have even used this compressor with their upholstery staplers. However, they have also reported that a stapler will work fine if you don’t really need too much air for this operation. You will find it the best compressor for inflation of smaller air-filled tools and tires, but it also works well blowing out swimming pool lines. Keep in mind that it’s not a high-end compressor, so this will only work if you’re trying to blow out swimming pool lines less than one inch. Be sure to keep the regulator turned down to avoid using 150psi.


The bottom line is that the CMB 15 is an ideal oil-free compressed air unit for handling lots of tasks around the house. Almost everything about this particular compressor is just great, from the pressure to its overall performance. The airflow rate in this compressor is a lot greater than many other air compressors you may find in the market. It is a good choice for anyone looking for a compressor for their truck, car, RV, or bus tires. So, if you’re on the lookout for a domestic compressor that is durable, strong, and compact, you should look no further than the Porter Cable CMB15, the best oil-free air compressor around.