8 Ways To Make A Portable Air Conditioner Quieter

Portable air conditioners are getting more popular by the year, and with good reason. They can cool down any room within their maximum range within minutes. 

Not only that but being portable allows them to cool down any room in your home. One of the most significant downsides to a portable air conditioner is that they make quite a bit of noise. With that said, how do you make them quieter?

There are a few tricks you can employ to make your noisy portable air conditioner quieter. 

  • Make sure your portable unit is on a level surface
  • Placing your mobile air conditioning unit on a rug
  • Setting up your portable air conditioner further away and using a fan
  • Wrapping your portable A/C unit in a blanket
  • Place your portable air conditioner on a slip resistance vibration mat
  • Keep your portable A/C unit away from sunlight
  • Keep the portable air conditioner on low
  • Purchase a quieter model 

Each of the methods provided above is a fantastic way to reduce the noise your portable air conditioner produces. While some of these solutions might be better than others, you will find that any of them will make a difference.

As you continue to read this article, it will go more in-depth about the solutions we have provided above.

How Can I Make My Portable Air Conditioner Quieter?

When it comes to portable air conditioners, one of their major drawbacks is the amount of noise they can produce. Air conditioners are very noisy machines. 

You have likely heard your or your neighbors’ air conditioner that cools down the entire house running while you are inside your home. Even though portable units are smaller and quieter, the noise is amplified because it is inside and in the same room you are located. 

With that said, you can employ a few tricks to reduce the amount of noise your portable air conditioner makes.

1. Make Sure Your Portable Air Conditioner is on a Level Surface

One of the significant causes of noise that comes from air conditioners is vibration. This is because air conditioners have a few moving parts.

Those moving parts like the fan and the compressor will rotate or vibrate, causing the whole unit to vibrate as well. These vibrations cause just about everything inside of the unit to shake and make tons of noise.

With that said, if your portable air conditioner is not on a level surface, these vibrations will cause even more noise. This excess noise comes from the entire device vibrating and shaking back and forth on the floor.

So keep in mind where you are placing your portable air conditioner. Setting it on an uneven floor will add more noise to the already existing problem.

2. Set Up Your Portable Air Conditioning Unit and Place it on a Rug

One easy trick to help reduce excess noise caused by your portable air conditioner is to place it on a rug. The heavier the rug, the better the results you will have. The carpet that you put under your unit will act as an insulator. 

Your rug will absorb some of the sounds caused by the vibrations inside of the device. Having a rug under your portable air conditioner will also help keep it more level as well.

3. Place Your Portable Air Conditioner on a Slip Resistance Anti-Vibration Mat

Taking what we have said about rugs in the previous solution, you can take it a step forward. There are unique mats called anti-vibration mats. Anti-vibration mats will do the same job as a rug, just better. 

Anti-vibration mats are made of a specific material that absorbs vibrations. Anti-vibration mats are a perfect solution to a noise portable air conditioner.

4. Setting Your Portable A/C Further Away and Use a Fan

The fact of the matter is, the further away a noise is, the quieter it is. So setting up your portable air conditioner further away from you is another excellent solution to the excess noise it provides. 

With that said, setting up your unit further away from you will make it take a little longer to cool the area where you are sitting. There is a simple solution to that issue. 

Using your run-of-the-mill stand-up fan will help alleviate that issue. The fan will help move the cold air that the portable air conditioner is releasing. Using a fan to help spread the cold air produced by the air conditioner will allow you to set the unit further away, thus reducing some noise.

5. Wrapping Your Portable Air Conditioner in a Blanket

Wrapping a blanket around your portable air conditioner is another solution to the noise caused by vibrations inside the machine. If you make a quilt or blanket and wrap it snug around the device’s base, it will help reduce noise. 

Wrapping a blanket around your portable air conditioner will help by absorbing some of the vibrations caused by the moving parts inside. The blanket will also help by reducing how much the outside of the portable air conditioner vibrates.

While this is an excellent option to help reduce noise, there is a minor side effect. Blankets are made to keep in heat and keep things warm literally. With that said, the hotter your portable air conditioner gets, the harder it has to work to cool the air around it. The harder the machine works, the more noise it can produce.

6. Keeping Your Portable Air Conditioner Out of Direct Sunlight

Let us stay on the topic of heat. One common mistake new portable A/C owners make is installing their unit where it gets a lot of sunlight. The sun provides not only light but heat. With that said, the longer your portable air conditioner sits and works in the sunlight, the hotter it gets. 

The hotter your unit gets, the harder it will have to work, and as previously stated, the harder your unit has to work, the noisier it gets. 

So, when setting up your portable air conditioning unit, look for areas where you can install it where the unit will not be in vast amounts of direct sunlight. This will drastically reduce the amount of sound it will produce. 

7. Keep Your Portable Air Conditioner on Low

The simplest way to reduce sound coming from your portable air conditioning unit is to keep it on its low setting. Keeping your unit on its low setting will make it work a lot less hard to cool the area around it. This has two effects, primarily supporting the unit low will reduce the amount of noise it produces. 

The second effect is that it will take longer for the device to cool the room down. But, if you do not mind waiting a few extra minutes, you will notice a big difference in the noise level coming from your device.

8. Purchase a Newer Quieter Model

The older a portable air conditioner gets, the harder it has to work to cool down a room. Not only that, but it will take much longer to do so as well. 

When you are comparing older to newer models, there are quite a few differences. New models work much quieter than older ones. More recent models are also able to cool down larger areas at a faster rate as well. 

With that said, simply replacing your old unit with a newer one will drastically affect the excess noise you are experiencing. 

Portable AC Unit

Good Portable Air Conditioners To Purchase

Below are a few portable A/C options that boast that they are some of the quietest models on the market. 

AIR CONDITIONERBTUSQUARE FEET COVERAGEDECIBELS
1. Honeywell 9000 Btu 9000300-400 sq. ft.49-52
2. Honeywell MO08CESWK 8000250-350 sq. ft.50-54
3. JHS 10,000 BTU  10,000350 sq. ft.49-52
4. hOmelabs 14000 BTU1400 BTUUp to 600 sq. ft.54-57

1. Honeywell 9000 Btu Portable Air Conditioner

The Honeywell 9000 Btu Portable Air Conditioner has a decibel level of 49-52, which is extremely quiet. This model also comes with a myriad of features. For example, this Honeywell comes with a remote control so you can change the temperature without having to walk to the device. 

Not only that, but this model also comes with a built-in dehumidifier mode that can reduce the humidity by 80 points in under 24 hours. While it removes the moisture from the air to make your home more comfortable, it is also fitted with a dual filter system. 

This dual filter system works to purify the air more efficiently by removing dust, hair, and other debris from the air.

2. Honeywell MO08CESWK

With another Honeywell on this list, the Honeywell MO08CESWK has a slightly higher decibel level of 50-54, making it only somewhat louder than the first unit on this list. 

This model comes with three different types that range from $400 to $500. However, with a price increase, the range that they can cool increases. 

These models come with a 3 in one function, A/C, dehumidifier, and fan mode. With that said, this model has an array of features that come with it, including remote control, a washable filter, and a continuous drain that you can lead outside to dehumidify your home constantly.

3. JHS 10,000 BTU Portable Air Conditioner 

The JHS 10,000 BTU Portable Air Conditioner is just as quiet as the first portable air conditioner on this list, with a decibel level of 49-52. This unit is able to cool down a 350 square foot room in minutes. This model also comes with an easy-to-read led screen and a remote to change the setting across the room. This JHS model also comes with the same 3 in 1 system with an A/C, Dehumidifier, and fan modes.

4. HOmelabs 14000 BTU Portable Air Conditioner

The HOmelabs 14000 BTU Portable Air Conditioner is the loudest one on this list with a decibel level of 54-57, it is still reasonably quiet. However, even though it is slightly louder, this is the most powerful portable air conditioning unit on this list. Able to cool up to 600 square feet in less than 10 minutes. 

Not only that, but this model has the same 3 in 1 system described above. However, the dehumidifier mod on this hOmelabs model is the most powerful. It is able to remove up to 12 gallons of moisture from the air in 24 hours.

Final Thoughts

While portable air conditioners are a popular pick to keep your home comfortable, sometimes the amount of noise they can produce is unbearable. 

With that said, hopefully, the tips and tricks we have provided you are able to help you make your unit quieter. Perhaps our list of extremely quiet portable air conditioners has given you a new quieter model.

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Hubert Miles

I've been conducting home inspections for 17 years. I'm a licensed Home Inspector, Certified Master Inspector (CMI), and FHA 203k Consultant. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance.
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