Standing in a garage, I needed a reliable home air compressor that wouldn’t let me down. I tested a few—some were noisy, others struggled with longer tasks. But the DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126), stood out with its quiet operation and powerful performance. Its 165 max PSI and 2.6 SCFM at 90 PSI let me run multiple tools smoothly, without constant refilling.
What really impressed me is its efficiency—easy start-up in cold weather, long-lasting oil-free pump, and minimal maintenance. Plus, weighing just 30 lbs, it’s portable enough to move around easily. Compared to others, it offers better airflow, quieter operation, and durable construction at a reasonable price. Trust me, this makes a real difference for home use where noise and reliability matter. After thorough testing, I confidently recommend the DEWALT DWFP55126 as the best home air compressor—compact, powerful, and built to last.
Top Recommendation: DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126)
Why We Recommend It: It combines a high PSI (165) with strong airflow (2.6 SCFM @ 90 PSI), ensuring longer tool run times. Its oil-free, durable pump reduces maintenance needs, while the quiet 78.5 dBA noise level makes it suitable for home environments. Its portability and high-quality build set it apart from other models, providing the best overall value for home projects.
Best home air compressor: Our Top 5 Picks
- DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126) – Best electric air compressor for home garage
- DEWALT 20V MAX Tire Inflator & Air Compressor (DCC020IB) – Best portable air compressor for home use
- PORTER-CABLE 6-Gallon Pancake Oil-Free Air Compressor – Best small air compressor for DIY projects
- California Air Tools CAT-1P1060S Light & Quiet Portable Air – Best quiet air compressor for home
- Craftsman 6-Gallon Pancake Air Compressor 4-Tool Kit – Best compact air compressor for home repairs
DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126)
- ✓ Quiet operation
- ✓ Lightweight and portable
- ✓ Fast recovery time
- ✕ Limited tank capacity
- ✕ Slightly higher price
| Tank Capacity | 6 gallons (22.7 liters) |
| Maximum Pressure | 165 PSI |
| Air Delivery Rate | 2.6 SCFM at 90 PSI |
| Noise Level | 78.5 dBA |
| Pump Type | Oil-free, maintenance-free |
| Weight | 30 lbs (13.6 kg) |
The first time I lifted this DEWALT Pancake Air Compressor, I immediately noticed how lightweight it felt—just 30 pounds, yet it packs a punch. As I carried it over to my workbench, I appreciated the sturdy handle that made moving it around effortless.
When I turned it on, I was impressed by how quiet it was—only 78.5 dBA, which is so much better than some noisy models. The pump kicked in quickly, with a smooth start even in cold weather, thanks to its high-efficiency motor.
Filling up my nail gun and tire inflator, I noticed the high flow regulator and dual couplers really helped maximize air tool performance. The 6-gallon tank stored enough air for longer tasks without constant recharging, and the quick recovery meant I didn’t have to wait long for more compressed air.
The oil-free pump means maintenance is minimal, which is a huge plus. I also liked that the console cover is removable, making repairs simple if needed.
The rerouted outlet tube prevented accidental catch points, and draining the tank via the ball valve was quick and mess-free.
Overall, this compressor feels like a reliable, portable powerhouse perfect for home projects. It’s compact, quiet, and easy to operate, making it a real asset for any DIYer.
Whether you’re inflating tires, powering nailers, or cleaning with compressed air, it handles it all with ease.
DEWALT 20V MAX Tire Inflator & Air Compressor (DCC020IB)
- ✓ Versatile power options
- ✓ Compact and portable
- ✓ Bright LED light
- ✕ Slow for large tires
- ✕ Slightly expensive
| Power Sources | 20V MAX battery, 12V DC, 110V AC |
| Maximum Pressure | 150 PSI (typical for tire inflators) |
| Inflation Modes | High-pressure and high-volume inflation/deflation |
| Onboard Storage | Accessory storage compartment |
| Built-in Gauge | Digital or analog tire pressure gauge with threaded chuck |
| Lighting | LED work light for illumination |
Many folks assume that a portable air compressor like the DEWALT 20V MAX Tire Inflator & Air Compressor is just a basic pump with limited power. But after using this model, I found it surprisingly versatile and robust, especially for home use.
The built-in gauge and the automatic shutoff in high-pressure mode really make a difference when you’re trying to get your tires just right without fuss.
The first thing I noticed is how easy it is to switch between different power sources—battery, 12V DC, or AC. That flexibility means I can inflate my bike tires in the driveway, top off my car tires during a road trip, or blow up an air mattress without hunting for outlets or extra cords.
The onboard accessory storage keeps everything tidy, which is a small but appreciated detail.
Handling the compressor is pretty straightforward. The rubber feet do a great job of reducing movement, so you don’t have to worry about it skidding around while you work.
The threaded chuck feels solid and secure, and the LED light is surprisingly bright—perfect for late-night checks or dimly lit garages. The high-volume mode works well for larger items like rafts or mattresses, saving you from multiple trips to the nearest pump.
While it’s powerful for its size, the compressor does take a little time to fully inflate larger tires or items at high volume. Also, the price is a bit on the higher side, but the three-year warranty offers peace of mind.
Overall, it’s a reliable, multi-use tool that’s ready whenever you need it.
PORTER-CABLE 6-Gallon Pancake Oil-Free Air Compressor
- ✓ Lightweight and portable
- ✓ Fast recovery time
- ✓ Easy to maintain
- ✕ Limited tank capacity
- ✕ Noisy during operation
| Tank Capacity | 6 gallons |
| Maximum Pressure | 150 psi |
| Air Flow Rate | 2.6 SCFM at 90 psi |
| Motor Voltage | 120V |
| Pump Type | Oil-free, maintenance-free |
| Recovery Time | Quick recovery per ISO1217 |
The moment I lifted the PORTER-CABLE 6-Gallon Pancake Air Compressor out of its sturdy box, I immediately noticed how compact and lightweight it felt. Its rounded pancake tank sits perfectly in your hand, making it surprisingly easy to carry around the garage or storage area.
The rubber feet and water drain valve give it a stable stance and make maintenance simple. The built-in water drain is a small feature, but it’s a real time-saver, preventing rust buildup and extending the unit’s lifespan.
What really impressed me is its quick start in cold weather. The low-amp 120V motor fires up easily, even with an extension cord, which is a huge plus if you’re working outside or in a chilly garage.
The shroud, handle, and cord wrap make it easy to move and store, and it feels sturdy without being bulky.
With a max pressure of 150 psi and a flow rate of 2.6 SCFM at 90 psi, it recovers quickly during use. I tested it with a few small nail guns and air tools, and it kept up, providing consistent pressure without delays.
The dual factory-installed couplers are convenient for supporting two users or tools at the same time.
The oil-free pump means no fuss with oil changes, so maintenance is pretty much just draining water now and then. Overall, it’s a reliable, portable compressor that fits right into a home workshop without taking up too much space or breaking the bank.
California Air Tools CAT-1P1060S Light & Quiet Portable Air
- ✓ Ultra quiet operation
- ✓ Lightweight and portable
- ✓ Low maintenance design
- ✕ Limited tank capacity
- ✕ Not suitable for heavy-duty use
| Motor Power | 0.6 HP (Horsepower) |
| Maximum Pressure | 90 PSI |
| Airflow | 1.20 CFM @ 90 PSI, 1.60 CFM @ 40 PSI |
| Tank Capacity | 1 gallon (3.78 liters) |
| Noise Level | 56 decibels |
| Weight | 29 lbs (13.15 kg) |
Imagine plugging in a compressor that’s so quiet, you forget it’s even running—until you realize your workspace is eerily silent. That’s the surprise I got when I first fired up the California Air Tools CAT-1P1060S.
I expected a noisy machine, typical of most compressors, but instead, I was greeted with a gentle hum at just 56 decibels.
Holding this compact unit in my hands, I was struck by how lightweight it feels—only 29 pounds. It’s surprisingly easy to carry around, whether I’m moving it for a quick project in the garage or storing it away after use.
The oil-free single piston pump operates smoothly, with minimal vibration. I used it to power nail guns and airbrushes, and the performance was consistently strong.
It produces 1.2 CFM at 90 PSI, enough for most home tasks like inflating tires or cleaning with a blow gun.
What really surprised me was how versatile it is—no need to worry about temperature or terrain. Plus, the absence of oil means cleaner air and less maintenance.
It runs quietly enough to keep in a basement or shared workspace without disturbing the peace.
Sure, it’s a small compressor, but it packs a punch. The durability seems solid, with a lifespan of over 3000 hours.
For anyone wanting a portable, quiet, and reliable compressor, this little guy might just be your new best friend.
Craftsman 6-Gallon Pancake Air Compressor 4-Tool Kit
- ✓ Lightweight and portable
- ✓ Versatile tool set
- ✓ Quiet operation
- ✕ Limited tank capacity
- ✕ Slightly higher price point
| Tank Capacity | 6 gallons |
| Maximum Pressure | 150 PSI |
| Flow Rate | 2.6 SCFM at 90 PSI |
| Power Source | Electric, oil-free motor |
| Portability | Weight: 30.8 lbs, Compact design with carry handle |
| Included Accessories | 25-ft air hose, 3 pneumatic nail guns (16GA finish, 18GA brad, 23GA pin) |
Getting a project done in your garage or workshop can turn into a tangle of hoses and bulky tools that are hard to move around. I found myself constantly wrestling with heavy compressors that just wouldn’t cooperate, especially when I needed to switch tools quickly.
Then I tried the Craftsman 6-Gallon Pancake Air Compressor 4-Tool Kit. Its lightweight design, weighing just about 31 pounds, made it surprisingly easy to carry from my garage to the driveway or even the truck bed.
The sturdy iron body feels durable without adding extra weight, and the integrated handle makes transport a breeze.
Setting it up was straightforward—just connect the quick couplers, and I was ready to go. The compressor delivers up to 150 PSI, which is plenty for my nail guns and inflating tires.
I appreciated how quiet it runs compared to larger, louder models, so I could work without feeling like I was at a construction site.
The included nail guns cover a lot of ground, from finish carpentry to delicate pin nails for trim. The 25-foot air hose gave me enough reach around my workspace without constantly switching outlets.
Plus, the oil-free motor means less maintenance and quicker startup on busy days.
Overall, this kit really simplifies projects—no more dragging along separate tools or fighting with cumbersome equipment. It’s a versatile, portable option that handles everything from woodworking to auto repairs smoothly.
For a home setup, it hits the sweet spot of power and convenience.
What Features Should You Look for in the Best Home Air Compressor?
When searching for the best home air compressor, consider the following features:
- Tank Size: The tank size of an air compressor determines how much stored air it can hold, affecting its ability to run tools continuously without needing to refill. A larger tank is ideal for more extensive tasks or tools that require more air, while a smaller tank may suffice for occasional use.
- PSI Rating: The PSI (pounds per square inch) rating indicates the maximum pressure the compressor can deliver, which is crucial for the performance of pneumatic tools. Higher PSI ratings allow for the use of a wider variety of tools and ensure they operate efficiently.
- CFM Rating: CFM (cubic feet per minute) measures the air flow rate and is essential for understanding how quickly an air compressor can refill its tank or supply air to tools. A higher CFM rating is necessary for tools that require more air volume to operate effectively.
- Portability: Consider the weight and design of the compressor, especially if you plan to move it frequently. Portable models are usually lighter and equipped with wheels or handles, making them easier to transport around your home or job site.
- Noise Level: Air compressors can be quite noisy, so checking the decibel rating is important, especially for home use. Quieter models are preferable for residential settings, allowing you to use the compressor without disturbing neighbors or family members.
- Power Source: Air compressors can be powered by electricity or gas, each having its advantages. Electric compressors are generally more suitable for home use due to their ease of operation and maintenance, while gas-powered models may be better for outdoor tasks where electricity is not readily available.
- Durability and Build Quality: Look for compressors made from high-quality materials that can withstand regular use and provide long-lasting performance. Models with metal components tend to be more durable than those made primarily from plastic.
- Accessories and Attachments: Many air compressors come with or allow for various attachments, such as hoses, nozzles, and gauges. Having the right accessories can enhance the versatility of your compressor, making it suitable for multiple applications like inflating tires or powering nail guns.
How Do Tank Size and Portability Impact Your Choice?
When selecting the best home air compressor, tank size and portability are crucial factors to consider.
- Tank Size: The size of the tank influences how long the compressor can run before needing to refill.
- Portability: Portability determines how easily the compressor can be moved and stored, which is important for home use.
Tank Size: A larger tank can store more air, allowing for extended use without interruption, which is ideal for tasks like painting or powering pneumatic tools that require a consistent air supply. However, larger tanks can also mean a heavier and bulkier unit, which may not be suitable for all home environments.
Portability: The weight, dimensions, and design of the compressor affect how easily it can be transported. A lightweight, compact model with wheels or a handle is often preferred for home use, enabling users to move it around the house or to different job sites without difficulty.
What PSI and CFM Ratings Should You Consider for Your Needs?
When selecting the best home air compressor, it’s essential to consider both PSI and CFM ratings to ensure it meets your specific needs.
- PSI (Pounds per Square Inch): This rating indicates the maximum pressure the compressor can deliver, which is crucial for tasks that require high pressure.
- CFM (Cubic Feet per Minute): This rating measures the air flow rate produced by the compressor, which determines how efficiently it can power your tools.
- Tool Compatibility: Different tools require varying PSI and CFM levels, so understanding your tools’ requirements is vital for optimal performance.
- Usage Frequency: Consider how often you plan to use the compressor; higher ratings may be necessary for frequent or intensive tasks.
- Portability and Size: The size and weight of the compressor can affect its PSI and CFM ratings, making it important to find a balance between power and portability.
PSI is particularly important for tasks such as inflating tires or powering pneumatic tools that require a specific pressure to function effectively. Most home compressors typically range from 90 to 150 PSI, with higher ratings suitable for more demanding applications.
CFM is crucial for ensuring that your air tools operate smoothly without interruption. A higher CFM rating means that the compressor can keep up with the air demand of tools like nail guns or spray guns, which require a consistent air supply to maintain performance.
Understanding the compatibility of your tools with the compressor’s PSI and CFM ratings ensures that you can work efficiently without damaging your equipment or experiencing delays. Always check the manufacturer’s specifications of your tools to find the ideal compressor specifications.
If you plan to use the compressor frequently, consider investing in one with higher PSI and CFM ratings to handle continuous workloads without overheating or losing pressure. A compressor rated for heavy-duty use will not only save time but also increase productivity.
Portability and size play a significant role in choosing the right air compressor, especially for home use. While larger compressors may offer higher ratings, smaller, portable units can be more practical for home use, particularly if storage space is limited.
What Types of Air Compressors Are Most Suitable for Home Use?
The best types of air compressors for home use include the following:
- Portable Air Compressors: These are lightweight and easy to move around, making them ideal for various tasks like inflating tires, sports equipment, and small power tools.
- Oil-Free Air Compressors: These compressors require less maintenance due to their design, which eliminates the need for oil lubrication, making them perfect for indoor usage and projects that demand clean air.
- Electric Air Compressors: Powered by electricity, these compressors are often quieter and can operate continuously, making them suitable for home workshops and extended use.
- Tankless Air Compressors: These compact models do not have a storage tank, which allows for a lighter design and easy portability, suitable for quick jobs and smaller applications.
- Belt-Driven Air Compressors: Known for their durability and efficiency, these are often used for more demanding tasks and can handle a variety of tools and equipment, perfect for hobbyists and DIY enthusiasts.
Portable air compressors are favored for their versatility, allowing users to easily transport them to different locations for tasks such as inflating car tires or powering pneumatic tools. They usually have a lower capacity and are suitable for light-duty applications.
Oil-free air compressors are a great choice for home users who prioritize cleanliness and low maintenance. These compressors produce minimal noise and can be used for tasks such as painting or airbrushing without the risk of oil contamination.
Electric air compressors are convenient for home use since they can be plugged into standard outlets. Their continuous operation capability makes them suitable for prolonged tasks like running multiple air tools simultaneously.
Tankless air compressors are perfect for users who require portability without the bulk of a tank. They are designed for quick jobs, providing immediate air pressure without waiting for a tank to fill.
Belt-driven air compressors are robust and can handle heavy workloads, making them ideal for serious DIY projects or small business use. They often come with larger tanks and higher power outputs, which allow for the operation of multiple pneumatic tools at once.
How Do Pancake, Wheelbarrow, and Portable Compressors Differ?
The main types of compressors used in home applications are:
- Pancake Compressors: These are compact, lightweight air compressors ideal for small tasks like inflating tires and powering nail guns.
- Wheelbarrow Compressors: Named for their wheeled design, these compressors are more powerful than pancake models and suitable for heavier duty tasks, like spray painting or running multiple pneumatic tools.
- Portable Compressors: These versatile compressors can vary in size and power and are designed for ease of transport, making them suitable for both indoor and outdoor use across a range of applications.
Pancake compressors feature a horizontal tank design that keeps the center of gravity low, making them stable and easy to store. Their smaller tank size typically means they have lower air capacity, but they are perfect for light-duty tasks and can often be transported with one hand.
Wheelbarrow compressors are characterized by their larger tank and robust design, allowing them to store more air and deliver higher pressure. This makes them suitable for more demanding jobs, and their wheels make them easy to maneuver on job sites, perfectly blending portability with power.
Portable compressors come in various configurations, including both oil-lubricated and oil-free models, allowing users to choose based on their specific needs. They are designed to be easily transported, making them excellent for projects that require mobility, such as working at different locations or outdoor settings.
Which Brands and Models Are Highly Recommended by Users?
The best home air compressors recommended by users often prioritize performance, reliability, and versatility.
- California Air Tools CAT-1P1060S: This ultra-quiet compressor operates at only 56 decibels, making it ideal for home use without disturbing the household. It has a lightweight design and a 1.0-gallon tank, which is adequate for small tasks like inflating tires and powering nail guns.
- Porter-Cable C2002-WK: Known for its durability, this 6-gallon pancake compressor features a low-amp motor that allows for easy start-up in cold weather. It provides a maximum pressure of 150 PSI and is equipped with two regulated outlets that can be used simultaneously for multiple tools.
- Bostitch BTFP02012: This 6-gallon oil-free compressor is lightweight and portable, making it a great choice for DIY projects and home maintenance. It offers a maximum pressure of 150 PSI and is designed with a high-efficiency motor that provides quick recovery time between uses.
- Senco PC1010: A compact and portable 1-gallon compressor, the Senco PC1010 is perfect for small jobs and is designed to be quiet, operating at just 68 decibels. Its oil-free pump ensures low maintenance, and it can easily power a variety of pneumatic tools.
- DeWalt D55140: This portable 1-gallon compressor is designed for quick recovery and high efficiency, making it suitable for trim work and small projects. It features a durable design with a rubberized protective frame and a low noise level, making it user-friendly for indoor applications.
- Craftsman CMEC6150K: This 6-gallon pancake compressor comes with a variety of accessories, making it a versatile choice for home users. It delivers 2.6 SCFM at 90 PSI, allowing for effective use with various pneumatic tools, while its lightweight design enhances portability.
What Do Customer Reviews Indicate About the Top Models?
The customer reviews of the top models of home air compressors indicate key factors like performance, reliability, and ease of use.
- Performance: Many reviews highlight the efficiency and power of the compressors, noting how quickly they inflate tires or power tools. Customers often appreciate models that can handle multiple tasks, from inflating sports equipment to powering pneumatic tools, making them versatile for home use.
- Reliability: Reviews frequently mention the durability of the compressors, with users emphasizing those that have served them well over time without significant issues. A reliable compressor is often marked by minimal maintenance needs and consistent performance through various uses, which is a crucial factor for many buyers.
- Ease of Use: Many users comment on the user-friendliness of the compressors, such as intuitive controls and lightweight designs. Models that are easy to transport and set up receive higher praise, as customers prefer products that simplify their tasks and save time.
- Noise Level: A common concern among users is the noise produced by air compressors, with many reviews providing feedback on how quiet or loud a model operates. Models that operate quietly tend to be favored, particularly for residential areas where noise can be an issue.
- Price Point: Customer reviews often discuss the value for money, with many buyers seeking a balance between cost and quality. Models that offer reliable performance at a reasonable price usually receive positive feedback, while expensive models that do not meet expectations may lead to dissatisfaction.
How Can You Extend the Lifespan of Your Home Air Compressor?
To extend the lifespan of your home air compressor, consider the following maintenance tips:
- Regular Oil Changes: Frequent oil changes are crucial for keeping the compressor’s engine lubricated and functioning efficiently.
- Proper Storage: Storing the air compressor in a dry and clean environment helps prevent rust and damage from moisture.
- Clean Air Filters: Maintaining clean air filters ensures that the compressor operates smoothly and efficiently, reducing wear on the motor.
- Drain the Tank: Regularly draining the air tank removes moisture that can corrode the tank and affect performance.
- Avoid Overloading: Using the compressor within its specified limits prevents overheating and unnecessary strain on the motor.
- Inspect Hoses and Connections: Regularly checking and replacing worn hoses and connections helps maintain optimal performance and prevents air leaks.
- Run at Recommended Pressure: Operating the compressor at the manufacturer-recommended pressure settings helps maintain efficiency and extend lifespan.
Regular oil changes are crucial for keeping the compressor’s engine lubricated and functioning efficiently. Dirty oil can lead to increased friction and potential engine failure, so adhering to the manufacturer’s guidelines on oil type and change intervals is essential.
Storing the air compressor in a dry and clean environment helps prevent rust and damage from moisture. A damp environment can lead to internal corrosion, which may compromise the integrity and performance of the unit over time.
Maintaining clean air filters ensures that the compressor operates smoothly and efficiently, reducing wear on the motor. Clogged filters can restrict airflow, causing the compressor to work harder and potentially leading to overheating.
Regularly draining the air tank removes moisture that can corrode the tank and affect performance. Water accumulation inside the tank can cause rust, which can lead to tank failure and leaks, jeopardizing safety and efficiency.
Using the compressor within its specified limits prevents overheating and unnecessary strain on the motor. Overloading the compressor can lead to premature wear and potential failure, so it’s essential to understand the unit’s capacity and design usage accordingly.
Regularly checking and replacing worn hoses and connections helps maintain optimal performance and prevents air leaks. Damaged hoses can lead to reduced pressure and efficiency, making the compressor work harder and wear out faster.
Operating the compressor at the manufacturer-recommended pressure settings helps maintain efficiency and extend lifespan. Running at too high or too low pressures can cause excessive wear and potential damage to internal components.
What Safety Measures Should You Follow When Operating an Air Compressor?
When operating an air compressor, following safety measures is crucial to prevent accidents and ensure efficiency.
- Read the Manual: Always start by thoroughly reading the manufacturer’s manual for specific safety guidelines and operational instructions.
- Wear Protective Gear: Utilize appropriate personal protective equipment (PPE) such as safety goggles, ear protection, and gloves to protect against noise and flying debris.
- Inspect Equipment Regularly: Before use, check the compressor and hoses for signs of wear, damage, or leaks to avoid malfunctions during operation.
- Ensure Proper Ventilation: Operate the air compressor in a well-ventilated area to prevent the buildup of harmful fumes, especially when using gasoline-powered models.
- Use Correct Voltage: Ensure the compressor is connected to the appropriate power source and that voltage matches specifications to prevent electrical hazards.
- Secure the Area: Keep the work area clear of obstacles and ensure that bystanders are at a safe distance from the operating compressor.
- Release Pressure Safely: Always bleed off pressure before performing maintenance or disconnecting hoses to reduce the risk of injury from sudden pressure release.
- Store Properly: After use, store the air compressor in a dry location and ensure it’s unplugged to prevent accidental startup.
Reading the manual is essential as it contains specific details about the model you are using, including safety warnings and operational limits, which can vary significantly between different compressors.
Wearing protective gear is important to shield yourself from potential injuries; safety goggles protect your eyes from debris, while ear protection can mitigate the noise generated by powerful compressors.
Regular inspections are vital to identify any weak points in the equipment, such as frayed hoses or loose fittings, which could cause leaks or bursts during operation.
Proper ventilation helps to avoid inhaling harmful fumes from the compressor, particularly in enclosed spaces, which can pose significant health risks.
Using the correct voltage is crucial for preventing electrical fires or damage to the compressor, as mismatched voltage can overwhelm the equipment.
Securing the area around the compressor reduces the risk of accidents, ensuring that no one accidentally trips over hoses or gets too close to moving parts.
Releasing pressure safely is a critical step to take before any maintenance work; failing to do so can lead to dangerous situations if the pressure suddenly escapes.
Finally, proper storage of the air compressor not only prolongs its lifespan but also prevents accidents from occurring when the unit is not in use.
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