Best Evaporative Coolers 2024: for efficient cooling solutions

Evaporative cooling is most effective when relative humidity is low.

If you constantly feel like your home is too warm, you may discover that the perfect solution to cool things down is an evaporative cooler. The best evaporative coolers, also called swamp coolers, are often mistaken for portable air conditioners. However, they use a different method to cool the air without a motor or an exhaust vent, which portable ACs need. A great way to make your immediate area more comfortable and cool is with an evaporative cooler.

These devices, which are sometimes called “swamp coolers,” use water to cool down the hot air that comes in and then blow it out through a fan, which effectively vents a room or other area. They work best in places where the humidity is low, ideally less than 30%, but they can still work when the humidity is between 30% and 60%. But if you go beyond that range, you probably won’t feel much of a cooling effect. Below we have mentioned the best evaporative coolers.

How Evaporative Coolers Work?

Evaporative coolers, which are also called “swamp coolers,” are energy-efficient and good for the environment. They are used to cool both indoor and outdoor spaces in hot, dry climates. They work with a simple idea: when water evaporates, it takes heat from the air around it, which has a cooling effect. How evaporative coolers work is this:

Evaporative coolers have a few main parts: a water tank, a pump to move the water around, a cooling pad (also called “evaporative media”), and a fan.

Water Circulation: Water is pumped from the reservoir onto the cooling pad, which is made of a porous material like cellulose. The cooling pad is made so that it can hold a lot of water and still let air flow through it easily.

Air moves through the evaporative cooler because the fan inside pulls warm, dry air from the outside through the cooling pad. As the air moves through the wet cooling pad, it comes into contact with the water, and some of the water evaporates into the air.

Evaporation: During evaporation, water molecules take in heat from the air as they change from a liquid to a vapor. By moving heat from the air to the water, the cooling pad lowers the temperature of the air that moves through it.

Output of cooler air: Once the air has been cooled and moistened, it is blown into the room or space, lowering the temperature of the area as a whole.

Increased Humidity: As the evaporative cooler adds moisture to the air during the evaporation process, the humidity level in the space being cooled rises. This can be helpful in dry climates where low humidity can make you feel uncomfortable and cause health problems.

Best Evaporative Coolers Comparison Table

The table compares the best Evaporative Coolers on the market by showing their main features, how well they work, and how users rate them. It gives a quick summary of each cooler’s cooling power, energy efficiency, tank size, and area covered. This gives consumers the information they need to make smart decisions about their cooling needs and preferences.

ModelHoneywell TC10PEUChampion Cooler RWC35 2-SpeedHoneywell Indoor Portable Air ConditionerHessaire MC18VHessaire MC61V
Cooling Capacity (BTU)10,0003,500Varies1,8006,100
Speed Settings3232Variable
Room Size CoverageUp to 350 sq. ft.Up to 600 sq. ft.VariesUp to 200 sq. ft.Up to 700 sq. ft.
Airflow DirectionAdjustableAdjustableAdjustableAdjustableAdjustable
Cooling TypePortablePortablePortablePortablePortable
Dehumidifier FunctionYesNoYesYesYes
Remote ControlYesYesYesYesYes
Energy Efficiency Ratio (EER)VariesVariesVariesVariesVaries
Dimensions (inches)VariesVariesVariesVariesVaries
Additional FeaturesTimer, LED DisplayAdjustable Louvers, TimerWashable Filter, Sleep ModeTimer, Casters, Remote StorageTimer, Water Level Indicator, Oscillating Louvers

Honeywell TC10PEU

Best Evaporative Coolers
TypePortable Air Conditioner
Cooling Capacity10,000 BTU
Recommended Room SizeUp to 350 sq. ft.
Cooling Speeds2-speed settings
Remote ControlYes
Energy Efficiency Ratio10.0

An evaporative cooler in the shape of a tower takes up less floor space and can fit in even small rooms or garages. The Honeywell TC10PEU Portable Evaporative Cooler can cool rooms up to 120 square feet in size. It has a 2-gallon water tank that can be filled through a door on the back of the unit. This model is your best bet if you want a small one for yourself that costs $150 or less.
The Honeywell TC10PEU is a popular and affordable model that is the right size for a bedroom, office, or tiny house where space is limited but comfort is important. For now, this is one of the best evaporative coolers you can buy right now.

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  • Powerful cooling for medium-sized rooms
  • Efficient dehumidification for added comfort
  • Portable design allows easy mobility
  • Remote control for convenient operation


  • May produce some noise at higher cooling speeds
  • Bulkier compared to smaller air conditioners

Champion Cooler RWC35 2-Speed

Best Evaporative Coolers
TypeWindow Evaporative Cooler
Cooling Capacity3,500 CFM
Recommended Room SizeUp to 800 sq. ft.
Cooling Speeds2-speed settings
Water Tank Capacity5.3 gallons
Remote ControlNo
Dimensions (HxWxD)32.8 x 25.5 x 15.3 inches

A window-mounted evaporative cooler is a good alternative to one that is mounted on the roof because it is more secure. If that’s what you want, the Champion Cooler RWC35 is a good choice. Even though it’s not the thinnest or smallest window evaporative cooler, this one can be mounted either vertically or horizontally to fit your window. It comes with a 1/3 horsepower motor already built in, so you don’t have to buy the motor separately. Still, this is one of the best evaporative coolers you can buy right now.

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  • Excellent cooling performance for large areas
  • Environmentally friendly evaporative cooling technology
  • Large water tank capacity for extended operation
  • Ideal for dry and arid climates


  • Requires proper ventilation for efficient operation
  • Not suitable for high humidity areas

Honeywell Indoor Portable Air Conditioner

Best Evaporative Coolers

Portable evaporative coolers and those made for garages, warehouses, or workshops are more utilitarian than those made for use inside. This type of evaporative cooler, on the other hand, looks like a portable air conditioner, but it doesn’t need a hose to vent. The Honeywell CL25AE works well to cool rooms up to 300 square feet in size that are hot and dry. It has a 6.6-gallon water tank with room for ice, which means it doesn’t need to be refilled as often as indoor evaporative coolers with 2- or 3-gallon water tanks. Overall, this is one of the best evaporative coolers you can buy right now.

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  • Wide range of models to choose from for different room sizes
  • Portable design for flexible cooling options
  • Some models offer heating and dehumidification features
  • Remote control for convenient operation
  • Energy-efficient options available


  • Cooling capacity and features vary by model, requiring careful selection
  • Some models may be more expensive due to added functionalities

Hessaire MC18V

Best Evaporative Coolers
TypePortable Evaporative Cooler
Cooling Capacity1,300 CFM
Recommended Room SizeUp to 500 sq. ft.
Cooling SpeedsVariable
Water Tank Capacity4.8 gallons
Remote ControlYes
Dimensions (HxWxD)32.0 x 18.0 x 16.0 inches

The Hessaire MC18V Portable Evaporative Cooler is a great deal if you want an evaporative cooler that works well and doesn’t break the bank. This model costs about $200 and uses three high-density media panels to spread a cool breeze over an area of up to 500 square feet. Since it only has a few parts and simple dial controls, it’s easy to put together and use. A two-speed fan only has high and low settings, but most people find it strong enough, even if it is a bit noisy. Thus, this is one of the best evaporative coolers you can buy right now.

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  • Efficient evaporative cooling technology
  • Suitable for medium-sized rooms
  • Portable and easy to move around
  • Variable cooling speeds for customized comfort
  • Remote control for convenient operation


  • Not as powerful as traditional air conditioners
  • Requires proper ventilation for optimal performance

Hessaire MC61V

Best Evaporative Coolers
TypePortable Evaporative Cooler
Cooling Capacity5,300 CFM
Recommended Room SizeUp to 1,600 sq. ft.
Cooling SpeedsVariable
Water Tank Capacity14.6 gallons
Remote ControlYes
Dimensions (HxWxD)40.0 x 27.0 x 22.0 inches

The Hessaire MC61V Portable Evaporative Cooler moves a lot of air, has a larger surface area for evaporation, and is easy to move around. With all of these features, this evaporative cooler is a great choice for most porches, patios, garages, and some well-ventilated indoor living spaces. Overall, this is one of the best evaporative coolers you can buy right now.

The CFM is one of the most important things to look for in an evaporative cooler. This model can move air at a maximum rate of 5,300 CFM (cubic feet per minute). So, it can cool spaces up to 1,600 square feet in size, especially if you use the swinging louvers to move air in different directions.

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  • Powerful cooling performance for large areas
  • Ideal for outdoor events or commercial spaces
  • Large water tank capacity for extended use
  • Variable cooling speeds for personalized comfort
  • Remote control for easy operation


  • May be too large for small rooms or spaces
  • Evaporative cooling effectiveness may be limited in high humidity environments

Tips for Efficiently Using an Evaporative Cooler

Using an evaporative cooler well can help you stay cool and comfortable when it’s hot while using the least amount of energy. Here are some ways to get the most out of your evaporative cooler:

Place the evaporative cooler next to an open window or door on the side of your house where the wind blows most often. This will allow air to flow well and help cool air get to all parts of your living space.

Ventilation: Make sure there is enough air flow in your home. The cooler pulls in cool air from outside and pushes out hot air. So, having the windows or doors open will let more air in and make it easier to cool.

Maintenance: Your evaporative cooler should be cleaned regularly, especially the pads and filters. Dust, dirt, and other things can build up and make it less effective at cooling. Follow the cleaning and care instructions given by the manufacturer.

Use Evaporative Coolers in Dry Climates: Evaporative coolers work best in dry climates with low humidity. In places with a lot of humidity, the cooling effect may not be as strong because the air can’t hold as much moisture.

Use the cooler nighttime temperatures to your advantage by running the evaporative cooler at night and turning it off during the day when it’s hotter. This can save energy and keep your home comfortable at the same time.

Adjust Water Levels: Figure out how much water should be in the reservoir of the cooler. Too much water can soak the cooling pads and make them less effective, while not enough water won’t cool enough.

Windows and Doors: Only open the windows and doors when the cooler is on. If you close them when the cooler is turned off, the cool air will stay in and warm air won’t get in.


What is the most effective use of evaporative cooling?

Use it only during certain times of the year. Evaporative air conditioners work best when the humidity is 70% or less and the heat is dry. Above 75% humidity, the air conditioner stops working well and can even hurt things because it makes the air even more humid.

Is a bigger evaporative cooler better?

The size of an evaporative system doesn’t affect how well it works like it does with a refrigerated system. It must be able to move enough air to keep your house cool, which is harder to do when it’s hot outside.

Editorial Staff
Editorial Staff
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!


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