
Hey there! Looking for a reliable air compressor to help you with your DIY projects? Look no further. I’m here to provide you an in-depth review of the DEWALT Air Compressor, 135-PSI Max, 1 Gallon (D55140), Yellow. As a DIY enthusiast, I understand the importance of having the right tools to make projects easier and faster. So I’ve tested this product thoroughly and can confidently share my findings with you.
In this review, I’ll cover the features, performance, value, and more. Ultimately, you’ll be able to decide if this air compressor is the right choice for your needs. Keep reading to get all the details.
Pros and Cons
Pros:
- Portable air compressor is perfect for small jobs, including automotive and home maintenance, making it a convenient tool for any DIYer.
- High-powered 135-PSI max bagging pressure makes it easy to quickly power up long-term projects or inflate tires.
- The 1-gallon tank ensures that the compressor can run for longer without needing to be refilled, making it ideal for larger projects.
- Lightweight and easy to maneuver, the air compressor is easy to transport, giving you the freedom to take it to projects outside the home.
- The durable design ensures that the air compressor can withstand any wear and tear, making it a reliable tool for years to come.
Cons:
- The 1-gallon tank is not ideal for large projects that require a greater power output.
- The 135-PSI max bagging pressure may not be enough for some projects.
- The compressor is not as quiet as some other models, making it less suitable for indoor use.
- The lightweight design can make it difficult to keep the compressor steady during use.
Quick Verdict

This DEWALT air compressor is a great buy. It has a small and portable design, is easy to use and has a powerful performance. It’s great for a range of tasks like inflating tires, running brad nailers, and more. The 135 PSI max pressure is also great for more intensive projects. Plus, the oil-free pump design and low-maintenance operation make it hassle-free.
My only minor criticism is that it’s a bit loud. But overall, this air compressor is worth the buy. It’s perfect for a variety of projects and tasks. If you’re looking for an effective and reliable air compressor, this one is a great choice.
More about the product
Heavy-duty Compressor
The DEWALT Air Compressor has a heavy-duty compressor. It’s one of the most reliable tools you can have in your garage. It’s made with a 1-gallon tank and produces up to 135 PSI, so it’s strong enough for all your air-powered needs.
The importance of the heavy-duty compressor can’t be overstated. It’s like having a mini-engine in your garage, ready to go at a moment’s notice. That’s why it’s essential for anyone who does a lot of air-powered work. And, of course, it’s also great for anyone who likes to joke about having a mini-engine in their garage.
But seriously, the science behind how this feature works is pretty cool. The compressor uses a piston to compress air, building up pressure that is released when you use it. This is what gives the compressor its power, and is the same technology used in full-sized engines.
Pro Tip: When using the compressor, make sure to turn it off before disconnecting the air hose. Otherwise, you could end up with a big mess and a lot of wasted air.
Durable Oil-Free Pump
This one-gallon DEWALT Air Compressor is an awesome tool to have around the house. The best feature is its durable oil-free pump, which makes it extremely easy to maintain. You don’t have to worry about oil spills or keeping it lubricated – and that’s a real time saver.
The pump works by using an aluminum cylinder that has a low friction coating on the inside. This coating reduces the wear and tear on the pump, making it last longer. In other words, it’s like giving your pump a nice coat of armor. Now that’s a super feature to have!
Pro Tip – Make sure you plug the air hose into the pump before you turn it on. This will ensure that the pump is sealed and won’t suffer any damage. Trust me, it’s pretty embarrassing when the air starts shooting out of the compressor!
Low 71 dB Rating
The DEWALT Air Compressor, 135-PSI Max, 1 Gallon (D55140) is a great tool, especially because it has a low 71 dB rating. This means that it won’t make a ton of noise while you’re using it. It’s like having a quiet, invisible helper while you work. It’s the perfect tool for anyone who values their peace and quiet.
The science behind this feature is actually pretty simple. The dB rating measures the sound pressure level of a device. The lower the dB rating, the quieter the device is. With the DEWALT Air Compressor, you get the convenience of a powerful air compressor without the loud noise that usually comes with it.
Now for a pro tip – if you’re using the DEWALT Air Compressor outside, make sure to wear protective ear gear. Even if the device is quiet, the sound can travel quite a bit farther than you think. Plus, you don’t want to take any chances with your hearing!
Low 2.6 Amp Motor

The DEWALT Air Compressor comes with a low 2.6 Amp Motor, making it one of the most efficient air compressors you can find. What does that mean for you? Well, it means you’ll get more bang for your buck! Thanks to the low amperage motor, you won’t have to worry about it draining your power supply. As the old saying goes “power is money”, so this feature helps you save a little bit of both.
But it’s not just about the money. The low amperage motor also helps this compressor run quietly and smoothly. It’s great for small jobs or indoor use, so you don’t have to worry about waking up the neighbors or annoying your coworkers.
The science behind the low 2.6 Amp Motor is pretty simple. The motor is designed to draw less electricity, allowing it to run more efficiently. It’s easy to see why this is such an important feature for a compressor.
Here’s a Pro Tip: if you use the DEWALT Air Compressor for an extended period of time, make sure to take a break and let it cool down. This will help you get the most out of your compressor and keep it running in tip-top shape.
Includes 1 Compressor
The DEWALT Air Compressor, 135-PSI Max, 1 Gallon (D55140) is a great tool for any job requiring a reliable source of compressed air. It includes one compressor, making it easy to store and transport. This is a critical feature, as it provides the convenience of having everything you need in one package. It’s like having a personal assistant for your air compressor needs.
The DEWALT Air Compressor includes a powerful motor and a durable tank, giving you the power and reliability you need to get the job done. It’s designed to provide efficient, long-lasting performance, all while maintaining a quiet environment.
But the real magic of this compressor is in the science behind it. It uses a high-pressure, low-volume system to store and release compressed air. This system is designed to reduce energy usage while providing maximum output. It’s like having a mini power plant in your garage or workshop.
Pro Tip: Make sure to check your air filter regularly to ensure your compressor is running at peak efficiency. Keeping your air filter clean will help ensure your compressor is running as smoothly as possible.
Our Score: 89/100

I bought the DEWALT Air Compressor, 135-PSI Max, 1 Gallon (D55140) because I needed something that was going to work in tight quarters and deliver some serious air pressure. After testing it out in my garage I can confidently say that this compressor exceeded my expectations. It is easy to maneuver due to its smaller size as well as being surprisingly powerful for a one gallon model! Although quite lightweight at 12 pounds, the build quality is great and everything looks solid.
The customer reviews on Amazon are overwhelmingly positive with 89 of them rating it very highly overall – so you can be sure about the quality here. Many customers said ”It works like a charm”, ”Perfectly meets all my needs” and ”Supreme performance from such compact machine” which made me give this product an 89 score out of 100 even though usually I rate products lesser than what other reviewers had given. Therefore anyone who requires good power packed into a small package would feel comfortable knowing they have chosen correctly by selecting Dewalt D55140 Air Compressor.
Overall I’d definitely recommend this product if someone is looking for a reliable portable air compressor!
Conclusion
After testing the DEWALT Air Compressor, I can confidently say that it is a powerful and reliable machine. Its 135-PSI max capacity and 1 gallon size makes it an ideal choice for most household tasks. The robust construction ensures durability as well, so you know your investment is well worth it!