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Tested: The Best Portable Air Compressors of 2023
We rigorously tested a slew of portable air compressors to see which one can best help you tackle almost any project with the pneumatic efficiency you deserve.
Air compressors are the backbone of any well-equipped automotive garage or workshop. With the ability to power a range of tools from impact wrenches to spray guns or simply to inflate your tires, they're a must-have for any professional or DIY mechanic.
Modern portable air compressors may not be able to power heavy-duty pneumatic tools, but they're smaller and more portable than ever, making them extremely handy for light-duty projects, on-site jobs, and everyday inflation. However, the myriad options on the market today can be overwhelming.
This comprehensive breakdown details some of the best portable air compressors on the market. We analyzed every feature—from power and capacity to portability and noise levels—to determine the best of the best.
Our Top Picks
Our mission was clear: to sort through an ocean of models and uncover the portable air compressor that provides top-notch performance for automotive applications. While large industrial models provide the utmost power and performance, most of us will never bolt one of those to our garage floor.
For this test, we stuck with portable models that can be moved where you need them. We may have sacrificed some brute power, but we gained a ton of convenience.
Whether you're a seasoned pro looking to upgrade your garage or an enthusiastic home mechanic in need of your first compressor, we've got you covered.
What to Consider When Buying a Portable Air Compressor
Power Source
Either electricity or gasoline typically powers air compressors. Electric models are usually lighter, quieter, and easier to maintain, making them suitable for indoor use. However, gas-powered models provide powerful performance when electricity is unavailable, such as at remote job sites or during roadside emergencies.
Pressure and Volume
Pay attention to the pressure and volume of your prospective air compressor. These are measured in pounds per square inch (psi) and cubic feet per minute (cfm), respectively. Higher psi ratings allow you to inflate tires more quickly, while a higher cfm rating means the compressor can power more tools simultaneously.
Portability and Size
Portability and size are also essential factors to consider. If you only need a compressor for on-the-go uses like roadside tire inflation, consider a smaller handheld model. On the other hand, for intensive tasks such as powering pneumatic machinery in a workshop, you'll likely require a larger stationary unit. With one of the portable air compressors spotlighted here, you'll get the best of both worlds, with the ability to power small pneumatic power tools and pump up inflatables on the go.
Noise Level
Don't overlook the volume of the air compressor. Compressors can be surprisingly loud, and high noise levels can be damaging to your hearing (and bothersome to those around you). If you're using your compressor in a residential area or enclosed space, consider a quieter model to keep the peace and protect your ears.
Remember, no single air compressor is best for every task. The optimal choice for you depends on your individual needs and circumstances.
How We Tested Portable Air Compressors
We assembled and weighed each air compressor model, complete with attachments, then measured the time taken and maximum psi achieved to fill each one from empty to full. Testing the usable capacity, we filled each compressor to full capacity and disconnected the power. We then hooked up a 1/2-inch Craftsman impact wrench and proceeded to take off as many lug nuts as possible, ending when the usable capacity was depleted.
Finally, we assessed noise levels with a decibel meter, while ease of use, portability, and additional attachments were also taken into account to select the best portable air compressors.
Gannon Burgett loves cameras, cars, and coffee: a perfect combination for his Hearst Autos work. His byline has appeared in USA Today, Gizmodo, TechCrunch, Digital Trends, the Detroit Free Press, and more.

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