3 Best Quietest Evaporative Swamp Cooler Picks

Looking for the quietest evaporative cooler for your home?. Great, then you’ve come to the right place. In this guide, you can expect to learn the following:

  • What an evaporative cooler is
  • How does evaporative cooler work
  • Our top-rated quietest swamp cooler picks
  • Factors to consider when choosing a quiet evaporative cooler

quietest evaporative cooler

Quick Preview of the Quietest Evaporative Swamp Cooler Picks

In a hurry?. I understand. Here is an overview of the best quiet swamp coolers that will cool your hot space down.

  1. Hessaire MC37M Portable Evaporative Air Cooler (Best Overall)
  2. Honeywell CS071AE Quiet Portable Evaporative Cooler ( Best Budget-friendly)
  3. Hessaire MC18 Portable Evaporative Cooler

Evaporative coolers are used all over the world. In order for them to work, they need a hot dry climate. In the USA, they work well in the arid western and southwestern parts of the country.

swamp coolers are a type of air conditioner that uses evaporation. A fan inside the machine pulls hot dry air in through a wet media pad.

Then the hot air quickly warms the top layer of moisture on the pad, causing the water to evaporate and dropping the temperature within the air cooler by up to 20 degrees.

This cool, moist air is then expelled from the unit by the same fan that draws the hot, dry air in, creating a constant airflow through the wet pad and into the immediate area.

Though these devices work great in hot dry environments, they are also known to be noisy just like most electronic devices that use motors.

Here, we have a look at some of the best evaporative coolers that are quiet in operation. With the many swamp coolers available now in the market, it can be confusing and time-consuming when shopping for these devices.

Also Read:

Best quiet pedestal fans for your cooling needs

What is an Evaporative Cooler and How Does It Work?

An evaporative cooler which is also sometimes called swamp cooler or box, desert cooler, wet air cooler, or evaporative air conditioner is a device that cools air through the evaporation of water.

Evaporative cooling systems use the fact that water will absorb a relatively large amount of heat in order to evaporate. The temperature of dry air can be dropped significantly through the phase transition.

This can cool the air using less energy than refrigeration which is used by air conditioning systems.

In climates where the weather is extremely dry, evaporative cooling of the air has added benefits of conditioning the air with more moisture for the comfort of building occupants.

Best Quiet Evaporative Coolers

With the many evaporative coolers in the market, some might find it difficult to select the right one for their home especially when it comes to choosing a quiet model that won’t make a lot of noise. Below are some of the best evaporative coolers with low noise for your consideration.

1). Hessaire MC37M Portable Evaporative Air Cooler

This Hessaire mc37m portable evaporative air cooler is a powerful swamp cooler that has an airflow of 3100 CFM, 3 fan speeds, oscillating louvers to make sure there is even distribution of air to cool down a 950 square feet space.

Weighing only 40-pounds, the Hessaire MC37M is perfect for tailgating, camping, cookouts, or even indoors in a home office or workshop up to 950 square feet.

Hessaire MC37M Portable Evaporative Air Cooler

While similar coolers only feature cooling media on 1 side, this swamp cooler has three-sided rigid cooling media, dispersing more cool air throughout your space.

This electrically powered device is easy to operate and maintain as well by simply operating 3 simple rotary controls ( Off, Hi, Medium, Low) turning the pump on/off, and an oscillating motor that is controlled independently.

There are two flexible water fill options available that allow you to use this quiet swamp cooler indoors or outdoors near a garden hose.

For the manual fill, you make use of the 10.3-gallon tank to provide you with up to 4 hours of self-contained cooling. While the continuous filling uses the garden hose hook-up included with the float valve.

 2). Honeywell CS071AE Quiet Portable Evaporative Cooler

This quiet portable evaporative cooler is a lightweight, highly energy-efficient model that is built to cool your immediate area such as couch, bed, workspace, etc. Because it is compact and easily portable for personal evaporative cooling.

This swamp cooler comes with five speeds including a whisper-quiet option ideal for lighter sleepers. If you also prefer gentle humidity of coolness, then you simply need to choose the low-fan setting for humidification.

With this unit, you get a full-featured remote control that allows you to control it at your convenient spot whether it’s from your bed, couch, or workspace.

You can also program this device timer for up to 7.5 hours for unattended operation.

All in all, this evaporative air cooler can provide a moist cool breeze for you in summer and humidification for you during the winter months.

3). Hessaire MC18 Portable Evaporative Cooler

This swamp cooler delivers 1300 CFM  of cool air to cover an area of up to 500 sq. ft. It weighs only 16 Ibs. with an easy-to-lift handle and wheels that allow you to take it anywhere with ease.
it’s a unit that is highly efficient with a 0.7 A motor that enables it to operate on vehicles with a 115V power supply for tailgating or comping cooling.
Hessaire MC18 Portable Evaporative Cooler
This swamp cooler has two speed that allows you to cool on HI and comfort and quiet on LOW. This unit has indoor and outdoor water fill options with two different water filling options.
You can use the continuous fill option by attaching a household hose with the included brass float adapter and float valve to control the level in the tank without monitoring.

Factors to Consider When Choosing the Quietest Swamp Cooler

Quiet evaporative coolers come with a variety of features that are necessary while others are up for consideration.

It’s important to check all these features before purchasing one so that you can make the right decision. Here are some factors to consider before you buy your evaporative cooler.


Swamp coolers vary in size and weight, and those two characteristics don’t coincide with how powerful a device is.

It is about how effective the swamp cooler is at cooling down your personal space or a roo. Sometimes, even the bigger models are just wasting space and not as effective as you may expect.

Portability is something to consider if you need to move your evaporative cooler around. If you want something you can move from room to room or bring in a car to work or camping, then you need a portable air cooler with a smaller size. But also just be mindful of the device’s power.

Maintenance Level

Although these devices are quite easy to maintain, you do need to keep this point in mind when choosing a model. Look at the instruction manual and the product details to decide:

How Easy It is to Clean

Just like most devices, swamp coolers are prone to bacteria buildup. So you need to clean them up regularly with a mild soap solution and sometimes even opt for an antimicrobial spray.

But if the model you intend to purchase is made of high-quality materials that don’t get bacteria buildup, it can easily be rinsed with water every time you refill the water container.

What Kind of Filters Does It Use?

From all indications, quiet evaporative coolers need regular maintenance.  Swamp coolers mostly use fiber, cellulose, or carbon filters.

Cellulose filters are the least effective when it comes to filtering the air and need to be changed regularly as they are organic and can get moldy if you don’t replace them on time.

Evaporative coolers also use carbon filters to trap any unpleasant odors in the air. But they also need routine maintenance to get good quality air.

On the other hand, fiberglass filters are a better option for trapping particles like dust that can cause allergies and affect the quality of air. These can be cleaned by washing them but still require regular replacements.

Space that Needs Cooling

Another next factor you need to consider is the space that needs to be cooled down. All direct residential swamp coolers can be roughly split into three categories by intended placement.

  • Indoor: personal, living space, bedroom, den, etc.
  • Outdoor: patio, sunroom, garage
  • Other: car, camping

There are many options available for each of these spaces’ intended use. The smaller ones even come with a portable power bank to fit practically into any situation.

But if you want one for your garden, there are also options created specifically for the outdoors that you can leave in the open for extended periods.

Cooler Sizing

Finally, you need to properly size the unit to your needs. Sizing refers to the power and cooling capacity of a device. You might have heard of a BTU rating, which is a means of measuring an AC’s efficiency. However, swamp coolers use CFM value for that.

Swamp Cooler Capacity

Here, we mean the cooler’s water capacity, which you would need to know if the manufacturer didn’t specify CFM. Residential coolers rarely can be hooked up to a water source, so you can choose by capacity and the space that needs cooling.

  • For small to medium spaces you need three to seven gallons
  • For large spaces — seven to 12 gallons
  • For outdoors — 12 to 16 gallons

Coolers that have a 16+ gallon water capacity are usually used for commercial purposes and aren’t intended for homes.

Benefits of Using a Quiet Swamp Cooler

Swamp coolers have a lot of benefits in terms of their affordability, power consumption, efficiency, and more.


Unlike an air conditioner (traditional, wall-mounted, or portable), swamp coolers don’t need a lot of energy to service the fan that evaporates the water and cools down the temperature around the device.

A high-quality evaporative unit can help you save up to a quarter of your monthly energy bills.

The components that make an AC work as an air cooler are the compressors and refrigerants. However, these components consume a lot of energy and eventually increase your energy bills.

But swamp coolers on the other hand uses water, a pump, and a fan to cool the air. This makes them more energy efficient.


AC systems are more expensive compared to evaporative coolers. You can easily find a decent swamp cooler for under $200.  If you consider the cost of installation and the unit price itself, evaporative air coolers are way cheaper than air conditioners.


Swamp coolers use water pads inside the device and an additional source of water. This makes them humidify the space, especially in dry climates.

The reason they are good humidifiers is that they use a natural evaporative cooling process. Keep in mind the optimal humidity for indoors is from 40% to 60%. So with these quiet swamp coolers, you won’t have to worry about the effects of dry air.

Easy and Don’t require Installation

Residential swamp coolers are portable and can work from any place that has a working plug socket. Some modern models can even be plugged into a power bank via a USB port, battery, or a 12 V car adapter.

Evaporative coolers don’t need any extra money to install or remove.


Another good thing about evaporative coolers is that they are very eco-friendly.  They are friendly and safer for the environment.

Also, these coolers don’t use any Freon-like liquids like some air conditioners, and they also allow you to reduce the amount of energy you use, whether in your home or office.

Final Thoughts on the Quietest Evaporative Coolers

Evaporative coolers are a great alternative to AC and fans in hot dry climates. If you are interested in a cost-effective, eco-friendly, and affordable cooling unit for your home, campsite, or outdoors, then these quiet evaporative coolers are recommended for you.

But just remember they need a hot dry climate to work. Anything less than that, will not work with them. I hope you found this article helpful in finding the best quietest swamp cooler for your home, workplace, or other spaces.

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