Portable air compressors go wherever the job is. 

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Whether you want to mount a portable air compressor on your truck, wheel it around the job site, or carry it anywhere, there's a portable compressor that fits any job—and any user.

This guide will help you choose the right portable compressor: one you can easily take up on the roof, under the deck, or on the road. We typically recommend customers look for compressors with enough CFM (Cubic Feet/Minute) and PSI (Pounds per Square Inch) to meet the job's demands.

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1. Hand-Carry Air Compressors

Hand-carry air compressors are the smallest and easiest to move around. If your compressed air needs include inflating balls, mattresses and tires, hobby work, and other light-duty applications, these are the compressors for you. They are available in a variety of sizes and are mostly electrically powered, with some exceptions of those needing gasoline instead.

Hand-Carry CompressorsInflatorsPancake CompressorsHot Dog CompressorsTwin-Stack CompressorsUsesEmergency car tires, inflatables, bike tires Entry-level uses; car tires; some air toolsHome DIY projects; most air toolsProfessional carpentry/ contractor workCFM0-2 CFM0-4 CFM0-5 CFM2-7 CFMMax PSI60-230 PSI90-135 PSI110-225 PSI120-175 PSIHP0-1 HP1-5.5 HP0.5 - 2 HP1-6 HPPower Source(DC) 12v/24v or (AC) 120v115-120v Electric & Gas110-120v110-230v Electric & GasBrowse Hand-Carry Compressors

Air Inflators

Mostly reserved for emergency use, high-quality inflators are extremely useful if kept in your car's trunk. They come in 12-volt, 120-volt, and cordless battery power options and are also the smallest consumer air compressors available.

When choosing an inflator, it's important to understand that it is not designed or meant for tasks other than inflating pool toys, bike tires, or small vehicle tires—in other words, it can't power air tools or fill RV-size tires.

Pancake Air Compressors

Pancake air compressors are portable, require minimal maintenance, and are easy to use. They are basic entry-level compressors with small tanks and are used for small projects around the house.

Pancake compressors are small and portable, making them a simple tool you can pull out and use at a moment's notice. Most have regulators and gauges so you can monitor your PSI, too. Some lighter air tools can be used with pancake compressors; however, due to their smaller air capacity, you may need to wait for the tank to refill often.

Hot Dog Air Compressors

Hot dog air compressors get their name from the fact that their elongated tanks resemble hot dogs. They usually come in 1-7 gallon tank sizes. The size of the tank determines how long an air tool can be used before the compressor kicks on, called its duty cycle.

Two features you should look for are a durable carrying handle and rubber feet to prevent scraping floors. Three-gallon (all-in-one) air compressors are great for small projects around the house and come with the most common attachments for small jobs. They are compact, lightweight, and extremely versatile machines.

You can use these compressors with most air tools, but if you plan on using heavy-duty professional pneumatic tools like a nail gun for a flooring project, you should consider the largest hot dog compressor tank available, or a twin-stack compressor (below). 

Twin Stack Air Compressors

Twin Stack air compressors have two tanks, so you won't spend nearly as much time waiting for your tank to fill as with other types of hand-carry compressors. With the second tank, they can consistently power most air tools with minimal downtime.

Most consumer-grade twin stack compressors are direct drive, and they require much less maintenance than belt-drive compressors, with the added benefit of not worrying about oil changes and belt replacements on oil-free models.

Like most portable compressors, twin-stack models are offered as oil-lubricated or oil-free. Oil-free twin stack compressors do not need to be maintained. If you are using an oil-lubricated pump, make sure to check the oil—if there is no oil to lubricate an oiled pump, the compressor will wear out sooner. 

2. Wheeled Portable Air Compressors

Air compressors with wheels are often classified by either having vertical or horizontal tanks. Wheeled compressors are available as either electric or gasoline-powered.

Unlike hand-carry compressors, these units have wheels because they are much heavier, so they need to be pushed or pulled to wherever they are needed.

Wheeled CompressorsVertical CompressorsHorizontal CompressorsWheelbarrow CompressorsUsersConsumers and hobbyistsProsumersContractorsCFM3-10 CFM2-27 CFM5-18 CFMMax PSI115-225 PSI120-180 PSI125-175 PSIHP1-4 HP1-14 HP1-14 HPPower Source

Electric Only (110-230v)

Electric (110-230v) or GasElectric (110-230v) or Gas

Portable Vertical Tank Air Compressors 

Portable vertical tank compressors are essentially the same as horizontal units below, just with a different tank orientation and electrical power. If you're debating between the two, your storage space should dictate which style you purchase.

If you're re-siding a home, building a deck, or framing an addition, a major benefit of the vertical orientation is eliminating the need to bend over to use the compressor.

A major difference between the horizontal and vertical air compressors is there are no gas-powered vertical models. If you need to work away from electricity and need significant CFM or PSI, horizontal portable compressors will likely be your best option.

Portable Horizontal Tank Air Compressors

Portable horizontal compressors are popular because they have more power than hand-carry units. In most cases, they are very similar, just with larger tanks and more costly components.

These single stage compressors are popular with carpenters because, with their large tanks, they don't need to run constantly to refill.

Horizontal compressors are also available as electric or gas-powered, so you'll need to decide ahead of time where you'll be using your compressor and how much CFM you need.

Wheelbarrow Air Compressors

When you need durability and mobility, choosing a Wheelbarrow air compressor might be exactly what you need. With single or double wheels and sturdy handles, you can pull wheelbarrow compressors weighing upwards of 300 lbs through tough, uneven terrain.

Wheelbarrow compressors are designed for professional tradesmen on the job site. They are built with larger air tanks and heavy-duty materials so they can handle challenging conditions and withstand the normal rigors of a job site.

You can choose between gas-powered or electric-powered models, single or two-stage motors, and single and two-wheeled varieties. Some compressors even offer dual-air outlets to power two air tools simultaneously.

3. Mobile Air Compressors

Mobile air compressors are as portable as the vehicle they're attached to. This category includes truck-mount, tow-behind, and DC compressors, each with unique applications and uses.

Truck-mount compressors can be found mounted on roadside service vehicles, and tow-behind compressors are often towed with construction trucks. DC compressors are designed to inflate punctured tires and power air tools on the go, making them perfect for off-roading in Jeeps and UTVs, or vehicles that use air-ride suspension.

Mobile CompressorsDC CompressorsTruck-Mount CompressorsTow-Behind CompressorsUsesOff-roading, air-ride suspension, semi-trucks, agricultural equipmentMobile contractor, farmer, and construction applications Industrial construction applicationsCFM0-8 CFM13-57 CFM90-790 CFMMax PSI100-200 PSI150-200 PSI100-150 PSIHP0.25-2 HP8-18 HP24-254 HPPower Source12-24vGas OnlyDiesel Only

DC Air Compressors 

DC (direct current) air compressors open up new possibilities that gasoline or electrically-powered compressors can't offer by running on battery power instead. These types of compressors don't normally have air storage tanks, meaning they run constantly, and many models boast a 100% duty cycle rating (always running).

Because they are battery-powered with either 12-volt or 24-volt currents, you can use them virtually anywhere, including permanently-mounted on your jeep, ATV, semi-truck, or agricultural equipment. You'll even find these compressors being used for air-ride suspension applications on vehicles.

With a DC compressor, you can go off-roading with ease, knowing you don't need to rely on plug-in power to prevent your tires from going (too) flat on you up in the mountains. Also, on rocky tracks, you won't have to worry about spilling gasoline or losing the gas tank, either.

Truck-Mount Air Compressors

Truck-mounted air compressors deliver heavy power from an even heavier compressor, supplying CFM and PSI levels of a two-stage compressor. As such, these compressors need to be transported in the bed of a work truck. You'll get the power of a stationary compressor with the convenience of portability.

For professional contractors or hard-working farmers, these compressors offer amazing value on job sites or in remote places. Just remember to bring extra gasoline because they are gas-only and can't be powered by electricity.

Tow-Behind Air Compressors

Tow-behind air compressors are behemoths of compressed air power. Up to 120 HP and over 375 CFM, these 2-stage rotary-screw compressors rival industrial stationary compressors.

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Too powerful and large to fit into the standard truck bed, most require a hitch and a sturdy set of wheels to transport them to the job site. However, some will fit into the beds of larger tractor-trailers and can even be purchased without the trailer (skid-mounted). Either way, with a compressor like this, sandblasting, graffiti removal, pavement breaking, post-pounding, and more have never been so simple.

Because of their size and horsepower, they can deliver as much consistent power as a 2-stage stationary compressor with the benefit of being out in the field. These professional compressors also come with options for extended warranties and cold-weather protection kits and are highway tow-able (up to 55 mph). 

The Best Portable Air Compressors

We know it can be difficult to choose the right type of portable air compressor, so we've created tools to help make the decision simple. What better way to discover the best portable air compressors than by hearing what our customers actually think?

Click the link below to view the best portable air compressors of the year, as voted by our air compressor experts and customers who have purchased, used, and reviewed their own compressors. Or, if you need more help, give us a call.

Best Portable Air Compressors

Air Compressor Buyer’s Guide Navigation

Air Compressor Buying Guide

Last updated May 16,

Air compressor power tools, also called pneumatic tools, are generally faster, lighter and more powerful than traditional power tools. They use a concentration of air to power the tool. The key to choosing the best air compressor is to match the unit to the job demands. Portable compressors are ideal for the home and the job site. Stationary compressors provide the high volume of air needed for powering automotive and production air tools. Use this buying guide to find out what to consider when selecting the best air compressors for your projects.

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Table of Contents

1. Types of Air Compressors

2. Electric Air Compressors

3. Gas-Powered Air Compressors

4. Cordless Air Compressors

5. Air Compressor Performance Ratings

6. Air Compressor Tank Size

Types of Air Compressors

There are two types of air compressors: portable and stationary.

• Portable air compressors come in a variety of shapes and sizes. Smaller models are light enough to carry. Larger models include wheels for mobility. Portable air compressors are available with tanks in different sizes, ranging from two gallons to 30 gallons.
• Designed to be bolted into a fixed area, stationary air compressors attach directly into a building's electrical circuit. They typically feature 60 to 80-gallon tanks and offer motors that are between 4 and 10-horsepower. They are a great investment for a garage or workshop.

Whether portable or stationary, the best air compressors are available in one or more power sources: electricity, gas or a battery pack.

Electric Air Compressors

Easy to use, electric air compressors simply plug into a regular wall outlet. Most run on standard household voltage, between 110V to 120V. However, compressors with motors that exceed 2HP can require a 220V to 240V outlet.

Electric compressors are the ideal choice if you need a quiet air compressor or a automatic start-stop air compressor. Since electric compressors don't emit fumes they are perfect for areas with limited ventilation. This makes them the best home garage air compressor.

Tip: Powering an electric compressor with a generator can damage the motor.

Gas-Powered Air Compressors

Gas-powered air compressors are usually portable and work well for those places where there's no electricity. They are commonly found at job sites, on farms or other outdoor spaces. The high-pressure output of a gas-powered air compressor makes it ideal for heavy-duty projects and tools such as nail guns, sanders and paint sprayers. These types of air compressors are more budget friendly but have fumes and can be noisy.

Cordless Air Compressors

Compact and lightweight, cordless air compressors use a rechargeable battery platform. Since there's no cords to get in the way, cordless air compressors are easy to carry around and use. This makes them ideal for projects that require more flexibility such as working on a roof or in small spaces.

Cordless air compressors are quieter and work equally well indoors and out. However, due to their limited power, even the best air compressors of this type work better for smaller projects than for larger ones.

Air Compressor Performance Ratings

Compressors generally have horsepower ratings between 1 1/2- to 6 1/2-HP. However, it’s the standard cubic feet per minute (SCFM) or performance rating that reflects the air pressure a compressor generates inside its tank. A tank's SCFM determines just how much power the compressor will provide to a tool. This power is measured in pounds per square inch (PSI). In addition, the tools powered by air compressors also have their own SCFM ratings that indicate the air flow or pressure a tool needs for top performance.

Here's how to gauge the minimum compressor SCFM rating you need for your air compressor:

• Examine the SCFM requirements of all the tools you intend to use.
• Multiply the highest tool rating by 1.5 to get the minimum compressor SCFM for your needs. Since actual SCFM varies during compressor operation, this number will give you a little buffer.
• If you expect to operate multiple pneumatic tools at the same time, you'll need more power. Calculate the minimum SCFM compressor rating by adding up the SCFM requirements for each tool that you'll use simultaneously.

Smaller tools usually require 0- to 5-SCFM. Larger tools can require 10-SCFM or more.

• Most light-duty home compressors are designed to power only one tool at a time. Light-duty compressors generally have 90-PSI, which is typically sufficient for powering pneumatic tools for simple, household tasks.
• More powerful, professional-grade compressors may generate 150-PSI or higher and can handle multiple tools.

Air Compressor Tank Size

A smaller tank size is a good choice if you intend to use a tool intermittently. For example, tools that require only quick bursts of air drain the tank much more slowly. For tools like pneumatic brad nail guns or finish nail guns, a 2- to 6-gallon tank is sufficient.

If your pneumatic tool requires a high volume of continuous air, then you should consider a larger tank. It’s best to have a large enough tank with a compressor pump that exceeds the SCFM requirement of the tools. This will allow the compressor time to cool between cycles.

Air Compressor Pump Type and Features

There are two air compressor pump types: single and two-stage. You can also choose between oil-lubricated or oil-free. In addition, there are other pump features that can protect both you and the compressor from harm and unnecessary wear and tear.

Below are the types of air compressor pumps you can choose:

• Single-stage air compressors can have one or more cylinders producing compressed air at the same output pressure.
• Two-stage air compressors. The first-stage cylinder(s) feed air to a second-stage cylinder that further compresses the air. The second stage cylinder(s) typically increase the tank pressure to around 175-psi. The benefit is more air stored in the same size tank, allowing tools to run longer. This is useful for high-demand work, such as continuous tool operation in an auto shop.
• Oil-lubricated air compressors require oil to operate, just like a car or lawn mower engine. The oil lubricates the moving parts in the pump to prevent excessive wear. They are generally larger and heavier than oil-free models. Plus, oil must be monitored and changed to prevent premature failure.
• Oil-free air compressors typically use special piston rings. These rings are made from a material like what's used in non-stick frying pans and to lubricate the cylinder. Oil-free compressors are a much smaller, light and a popular choice for both homes and job sites.

Best Air Compressor Accessories

Once you've discovered the best air compressors for home use or workshop use, it's time to add a few key air compressor parts and accessories:

• Installing a pressure regulator on your air compressor will help you know precisely how much air flows from the compressor. You can easily adjust the pressure up or down according to the needs of the job.
• Trade out the air hose with a longer option for extended reach.
• Adding a desiccant dryer to the air compressor protects your equipment from the moisture contained in compressed air. Moisture can cause damage to pneumatic equipment over time.
• An air filter protects pneumatic tools from water, oil and dirt as you're using the air compressor.
• Air compressor combo kits include an air compressor with key accessories or a compatible pneumatic tool.

Air Compressor Features and Safety

When deciding between different types of air compressors, look for features like:

• An air-cooling system that cools pumping machinery and extends motor life.
• A thermal overload switch which automatically shuts off motor if it overheats, increasing tool life.
• A label stating that the unit meets the standards of the ASME (American Society of Mechanical Engineers) for high-quality materials and craftsmanship.
• A roll cage that protects the compressor from being crushed or battered on the job site.
• Air compressors with universal quick connectors make it easy to trade out tools.

After you've chosen the best air compressor for your needs, keep it performing well with these tips:

• Never exceed the recommended pressure for the job or the tool.
• With oil-lubricated compressors, always check the oil level to ensure sufficient lubrication.
• Make sure safety relief valves are not covered during use. Otherwise, air will escape automatically if the pressure is too high.
• After each use, open the drain to get rid of any moisture that's accumulated.
• Always consult your owner's manual for specifics.

Now you understand how to choose the best air compressor for your pneumatic tools. Start exploring accessories and extra features to make your projects even easier. Ready to choose a portable or stationary air compressor? Use The Home Depot Mobile App to locate products and check inventory. We'll take you to the exact aisle and bay.

Just need the best air compressor for one project? Consider tool rental to get your project done. Use a rented tool and then bring it back. There's no maintenance required or storage needed.

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