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5 Best Evaporative Coolers in 2023 [Tested and Reviewed]

5 Best Evaporative Coolers in 2023 [Tested and Reviewed]

Evaporative coolers, sometimes called swamp coolers, use heat to evaporate water and blow out cool air. They have an advantage over standard air conditioners because they can be used outside and consume less energy. Due to not using refrigerant gas, which contributes to the greenhouse effect, they're considered a more environmentally friendly type of cooling system. With so many different evaporative coolers available from makers like Honeywell and Hessaire, you might be wondering how specs differ from model to model or may have doubts as to whether they can bring down the temperature in your home.

We've compared five bestselling evaporative coolers available online and tested them to recommend the best evaporative coolers for you.


We tested each product for the following:

  • Cooling Ability
  • Ease of Use
  • Noise Level
  • Energy Efficiency

Which product ended up being the best of the best? In our buying guide, we'll also tell you how to pick the best evaporative coolers, so read on for more shopping tips.

Last updated 09/11/2023
Hiroki Tamaru
Guide
Head of HVAC and Vacuums at mybest
Hiroki Tamaru

During his university years, Hiroki Tamaru worked as a dispatch sales representative for Dyson, where he was in charge of vacuum sales at electronics stores for two years. As head of HVAC and vacuums at mybest, Hiroki has rigorously tested and reviewed a diverse range of over 150 vacuum cleaners and HVAC products such as evaporative coolers, oil heaters, and cordless vacuums, and more from notable appliance brands such as Haier, De'Longhi, and Electrolux, HVAC manufacturers like Hessaire, and vacuum cleaner manufacturers like BISSELL and Eureka. He meticulously evaluates performance metrics, features, energy consumption, and more. Leveraging his sales experience in the household appliance industry, Hiroki strives to create content that makes it easy for anyone to develop a passion for these products.

Hiroki Tamaru's Profile
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How We Tested the Products

Scroll to testing method
We gathered the 5 bestselling Evaporative Coolers and put them through rigorous testing.
  1. Cooling Ability

    Test① Cooling Ability

    The entire purpose of buying an evaporative cooler is for it to make your home cooler and more comfortable. So the first point we looked at was how much cooling power each one has. For the sake of consistency, we tested each cooler in a 445-square-foot room where the temperature and humidity could be controlled. Imagining a hot summer day in Phoenix, Arizona, we decided on a temperature of 100 degrees and humidity of 20 percent.We then filled each cooler's tank with water, and for those that came with cooling gel we added the frozen gel pack to the tank. Once the room was raised to the correct temperature, we stopped all methods of maintaining temperature or humidity as to not affect testing. We then turned the evaporative coolers to their highest settings and let them run for 30 minutes. As they require ventilation, we also left a door in the room cracked open while they were running. We placed two temperature data loggers in each corner of the room, one 50 inches above the floor and one five inches above the floor, as well as one three feet away from the air vent, and recorded the temperature every minute. We also measured the speed of the wind at the air vent.Using the average temperature and humidity over 30 minutes, we referenced the National Weather Service's heat index calculator to find the apparent temperature, or how hot it feels. Products that kept the room cool enough to avoid the risk of heat exhaustion while also producing a strong enough breeze to feel the cool air on your body were given the highest scores.

  2. Ease of Use

    Test② Ease of Use

    Even if it has powerful cooling ability, we wouldn't recommend an evaporative cooler that constantly needs to be refilled or is hard to move around. So we looked at each product's ease of use next. We decided which aspects of an evaporative cooler are most vital given the various situations they're used in, and then added up the scores in each category. The following points are ordered from most to least important.How much water can the tank hold?How much does the unit weight?Can a hose be connected to the water tank for continuous water supply?How many levels of air flow are there?Is it easy to move? Are casters provided?Can you remove the pad?Is a remote control included? If so, does it have the same functions as the panel on the unit?Is the water inlet on the top of the unit?How easy is it to refill the water? Is the water tank detachable?Does it have a timer?Does it have a setting to automatically turn off if the tank is empty?

  3. Noise Level

    Test③ Noise Level

    The sound of a fan spinning is louder than you're probably thinking. Since you'll be running your evaporative cooler all day in the hot months, you'll want the one that makes the least amount of noise possible to not drown out your conversation. That's why we graded each one on its noise level while running. First, we made sure there were no other sources of noise in the room. Then we measured the amount of noise picked up three feet away from each evaporative cooler on its lowest and highest setting, and took the average of those two numbers. Those that made less noise than a standard fan and were quiet enough to use while sleeping got the best score.

  4. Energy Efficiency

    Test④ Energy Efficiency

    People who are considering getting an evaporative cooler for their home may be concerned about how it will affect their electric bill. So we looked at how much power each one consumes. During the tests on cooling ability, we used an energy monitor to calculate the energy consumption from each cooler when turned to its highest setting. We compared the energy consumed by the evaporative coolers to other products like air conditioners and fans, and gave the best scores to those that had similar energy consumption to standard fans.

All product tests
were conducted in-house at mybest

Company Facility

Table of Contents

How Do Evaporative Coolers Work?

To properly use an evaporative cooler to get through the hot summer days, you should first understand how they generate cool air.

Water Soaked Into a Pad Vaporizes and Creates Cool Air

Water Soaked Into a Pad Vaporizes and Creates Cool Air

In evaporative cooling, heat is extracted from the surrounding air when it passes over water. When the water saturated into a pad evaporates, it lowers the temperature around it.


As dry, warm air is absorbed through the pad; a fan sends out moist, cool air. So if the water in your evaporative cooler runs out, it won't do anything an ordinary fan can't. You'll need to frequently refill the water tank to ensure this doesn't happen.


It would be best to keep doors or windows open to prevent the humidity in your home from building up when using one. If it becomes too humid, the water in the pad will have a more challenging time evaporating, producing less cool air.

How Are They Different From Air Conditioners?

An evaporative cooler and an air conditioner aren't the same thing. Air conditioners are versatile cooling systems that expel heat from your home, but evaporative coolers also have their advantages.

Evaporative Coolers Are Great to Use Outdoors and Eco-Friendly

Evaporative Coolers Are Great to Use Outdoors and Eco-Friendly

As mentioned earlier, evaporative coolers vaporize water to absorb heat from the surrounding air. But air conditioners move air from one space to another, generally from your living room to the outside, to lower the temperature. Since they use evaporation, a swamp cooler can reduce the surrounding temperature outdoors, while an air conditioner can't cool one space without another space to displace the heat. This is why people often use evaporative coolers on their patios or in their garages.


Air conditioners have the advantage of cooling the inside of your home. Keeping the humidity low is another way of making hot weather more tolerable, which we'll explain later. Evaporative coolers raise the humidity while they're running, so they're best used in a dry climate.


Air conditioners expel the heat from inside your home outside, which uses a lot of energy. But evaporative coolers generally only need enough power to keep a fan running. Think of it like putting a wet towel on top of a fan, and you'll have a good idea of how much electricity an evaporative cooler needs to run.

Keep These Things in Mind When Using an Evaporative Cooler

Evaporative coolers are incredibly convenient; all you need to do is fill up the water tank and press a button. But they have one major disadvantage. Read these tips to ensure you don't waste your money.

Evaporative Coolers Raise Humidity

Evaporative Coolers Raise Humidity

Evaporative coolers vaporize water soaked into a pad to blow out cool air. This means moisture is transferred into the air, which raises humidity. It's very similar to a humidifier.

No Matter How Cool Your Room Is, High Humidity Increases the Chance of Heat Stroke

No Matter How Cool Your Room Is, High Humidity Increases the Chance of Heat Stroke

You've probably heard the phrase, "It's not the heat, it's the humidity," in summer, but the truth is that both temperature and humidity influence our perception of heat. Our sweat performs a vital function of lowering our body temperature when we feel hot. So even if the temperature is the same, more sweat can evaporate and balance our body temperature when the humidity is low, lowering the risk of heat stroke.


The National Weather Service calculates a heat index, which looks at the temperature relative to the humidity, to measure how hot the weather feels.

Hiroki Tamaru
Head of HVAC and Vacuums at mybestHiroki Tamaru

To find which coolers lower the risk of heat stroke and keep the air cool, we considered the temperature and the relative humidity when scoring them.

Use an Evaporative Cooler Where the Climate Is Dry to Avoid Raising the Humidity

Use an Evaporative Cooler Where the Climate Is Dry to Avoid Raising the Humidity

Keeping the humidity low is essential for preventing heat stroke, but evaporative coolers raise the humidity while they're on. You can use one safely in areas like the Southwest, where the humidity in summer stays below 45 percent, without making the room too muggy.


But if you were to use one on the East Coast, which already has a humid climate, the water in the pad won't be able to evaporate as quickly, and you also put yourself at a higher risk of getting heat exhaustion by raising the humidity even more. It's best to use an air conditioner to cool down your house in a humid climate.

How to Choose an Evaporative Cooler - Buying Guide

Here are the points to keep in mind when choosing the best Evaporative Cooler.

① Choose an Evaporative Cooler That Uses a Large Pad and Is Easy to Refill

When buying an evaporative cooler, the most important things to look at are whether it can effectively decrease the temperature, and whether it's the right size for the room you plan to use it in. First, we'll examine using one in the living room, which is the most common place to put it.

If You've Got a Big Living Room, an Evaporative Cooler With a Large Pad Size Is a Must to Stay Cool

If You've Got a Big Living Room, an Evaporative Cooler With a Large Pad Size Is a Must to Stay Cool

An evaporative cooler's ability to lower the temperature depends on the size of the pads it uses. Those with larger pads are able to vaporize more water and thus absorb more heat.


Of course, evaporative coolers with larger pads need to be bigger themselves, but if you've got that large of a space to cool down then you've probably got the space to put one as well. If you want to keep your living room cool from wall to wall, then we suggest choosing an appropriately large cooler.

Hiroki Tamaru
Head of HVAC and Vacuums at mybestHiroki Tamaru

Some smaller sized evaporative coolers come with cooling gel to put in the water tank. For those that did, we added the frozen gel packs during evaluation, but even then none of them could drop the temperature lower than 80 degrees, so it's hard to say how effective they are.

Having the Water Inlet Hole on Top of the Unit Will Save Your Back

Having the Water Inlet Hole on Top of the Unit Will Save Your Back

Evaporative coolers need to have water in the tank to function properly. Some models are built so that you can attach your garden hose and then use them without worrying about when the water in the tank will run out. But if you're using one in your living room, it's more likely that you'll be using a bottle or pitcher to refill the water.


Larger sized evaporative coolers have big tanks that would require 20 to 30 trips to refill if you were carrying the water in a two-liter soda bottle. Even if you've got a bigger container, you'll still need to go back and forth several times if you're refilling it by hand.


Pay attention to where the water inlet hole is to make this process easier. If it's on top of the unit, you won't need to constantly bend over when refilling the water.

Honeywell's CO60PM Combines the Best of Pad Size and Ease of Refilling

Honeywell's CO60PM Combines the Best of Pad Size and Ease of Refilling

Of all the products we looked at, Honeywell's CO60PM did the best job of keeping the room cool while also being easy to refill. Its three large pads were powerful enough to bring down the temperature from 100 degrees Fahrenheit to 73.9 degrees in a mere 30 minutes. And the refill hole was on the top of the unit, making it easy to add water as needed.


It also happened to have the largest tank capacity of all the products we looked at, meaning you won't have to refill it as frequently. This one gets our highest recommendation for people looking for an evaporative cooler to use in their living room.

② Choose a Model That Balances Size and Power for Your Bedroom or Home Office

Evaporative coolers are also popular items to cool down rooms where you might not have as much free space, like your bedroom or home office. Read our guide below so you know what to look for when choosing one.

Larger Units Take Up Too Much Space for Smaller Rooms

Larger Units Take Up Too Much Space for Smaller Rooms

Large evaporative coolers have more power, but can also get in the way if you haven't considered whether or not you have the space to put one. Imagine having a small washing machine sitting in your bedroom and you'll get an idea of what it's like. If you plan to use it for cooling down your bedroom or study, you'll need to choose a relatively small evaporative cooler.

Smaller Pads Have Limited Cooling Power

Smaller Pads Have Limited Cooling Power

An evaporative cooler is useless if it doesn't keep your room cool, whether or not it's the right size. In order to do its job, even a smaller unit should use the largest pads possible. While they were not as effective as larger units in our testing, smaller evaporative coolers with the largest pads still did a good job of bringing the temperature down.


At first glance you might think units with smaller pads will have more or less the same effect, but after testing them we found that they weren't able to lower the temperature significantly more than leaving the window open for 30 minutes did.

Only Hessaire's MC18M Had a Small Body With Large Pads

Only Hessaire's MC18M Had a Small Body With Large Pads

The MC18M by Hessaire is compact enough to fit comfortably in smaller rooms without compromising cooling power. This evaporative cooler uses one large pad and brought a 100-degree room down to 78 degrees in 30 minutes.


One thing we appreciated about this model was its narrow profile. Evaporative coolers require that you leave some space between them and the wall behind to pull in dry air, and the shorter depth of this one helps to save space in your room.

③ For Your Patio or Garage, Choose an Evaporative Cooler With a Large Tank That Uses a Hose for Its Water Supply

Evaporative coolers are the best choice for cooling down a space outdoors. If you're going to use one outside, you'll want one that can be attached to a water supply with a hose.

You Won't Need to Constantly Refill the Tank if It Has a Hose Inlet

You Won't Need to Constantly Refill the Tank if It Has a Hose Inlet

You may remember from the section where we discussed using one in your living room that refilling the water in an evaporative cooler can be a hassle. But if you have a water spigot near your patio or garage, you can do away with this chore completely. We recommend getting one that can be connected to a hose so you don't suddenly lose the flow of cool air while you're relaxing outside.

Look for a Wind Speed of 15 Miles per Hour or Higher

Look for a Wind Speed of 15 Miles per Hour or Higher

For cooling down a space outdoors, you'll need to look at how strong the air current is on your evaporative cooler. You've probably noticed that hot days don't feel quite so hot if there's a breeze. When we compared the cool air produced by a variety of models, we found that those as fast as 15 miles per hour near the vent were enough to feel the breeze from far away. An evaporative cooler with a wind speed of less than this wouldn't be enough for outdoor use.

We Like Hessaire's MC37M if You Want One With a Hose Attachment Port

We Like Hessaire's MC37M if You Want One With a Hose Attachment Port

Hessaire's MC37M and Honeywell's CO60PM were the two products that produced strong air currents and were built to attach a hose to. We didn't notice a big difference between their cooling power. The biggest differences between these two were the tank capacity and where the water inlet was. But if you keep your evaporative cooler attached to a water supply with a hose, these aren't particularly important issues.


To put it simply, there isn't much difference in terms of functionality for using these two models outdoors, but the MC37M is priced at around half of what the CO60PM costs. Unless you've got some very specific need, we suggest going with the MC37M.

④ Air Conditioners Are Better to Use at Night Than Evaporative Coolers

It's hard to fall asleep in a hot room, and the heat can also affect sleep quality. You probably want to keep your bedroom cool at night just as you would in the daytime. But evaporative coolers tend to make a lot of noise while in use, so they aren't best used while sleeping.

Expect Noise as a Tradeoff for Cooling Power

Expect Noise as a Tradeoff for Cooling Power

There is a wide range of evaporative coolers on the market, but there's no getting around the fact that the amount of noise they make is directly proportional to their cooling power. High power models that can put out a lot of cool air are also the noisiest, which would disrupt your sleep. While we did find some models that were quiet enough to keep by your bed and not disturb your sleep, they didn't have enough cooling power to make it easier to sleep in the first place.

Go With a Portable or Window Air Conditioner to Use While Sleeping

Go With a Portable or Window Air Conditioner to Use While Sleeping

Evaporative coolers that are both effective for cooling down the whole room and quiet unfortunately don't exist. Consider getting an air conditioner to get you through warm summer nights. Window air conditioners or portable ones don't require any advanced installation. These kinds of products carry the hot air out of the room while bringing in the cool air from outside, so they tend to be effective even on lower, quieter settings.

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5 Best Evaporative Coolers Ranking

Here are the best Evaporative Coolers we found after testing them. We ranked them after weighting each of our testing specs.
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35 in. or taller
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Details
Cooling ability
Ease of use
Low noise
Energy efficient
Width
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Energy consumption
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Timer minimum
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Lowest noise level
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1

Honeywell

Indoor/Outdoor Evaporative Air Cooler CO60PM

Honeywell Indoor/Outdoor Evaporative Air Cooler	CO60PM 1枚目
4.11

mybest's Top Choice! Cooling Power From Wall to Wall and Hassle-Free Refilling

4.44
4.14
3.48
4.02

18.3 in.

27.6 in.

40 in.

41 lbs.

15.9 gal.

220W

110-120V

3

-

-

66.8dB

68.9dB

N/A

N/A

850 sq. ft.

1540 CFM

2

Hessaire

Portable evap cooler MC37M

Hessaire Portable evap cooler	MC37M 1枚目
4.10

Cools Your Whole Living Room in Just 30 Minutes, With Continuous Water Supply as an Added Bonus

4.44
4.02
3.63
3.81

16 in.

24 in.

38 in.

40 lbs.

10.3 gal.

250W

115V

3

-

8hrs.

62.3dB

66.4dB

N/A

-

950 sq.ft.

3100 CFM

3

Hessaire Products

Portable Evaporative Cooler

Hessaire Products Portable Evaporative Cooler 1枚目
3.94

Sized Perfectly to Cool Down Your Bedroom or Other Small Spaces

3.90
3.90
3.99
4.20

12 in.

20 in.

28 in.

16 lbs.

4.8 gal.

85W

110-120V

2

-

-

57.0dB

60.0dB

N/A

N/A

500 sq. ft.

1300 CFM

4

Skonyon

Skonyon 3-IN-1 Evaporative Air Cooler Portable Fan Cooling

Skonyon Skonyon	3-IN-1 Evaporative Air Cooler Portable Fan Cooling	 1枚目
3.82

Quiet Enough to Use While Sleeping, but the Effect is Negligible

3.60
3.72
4.50
4.47

11 in.

9.8 in.

21.25 in.

9 lbs.

0.8 gal.

65W

110V

3

0.5 hrs.

7.5 hrs.

42.9dB

47.9dB

N/A

N/A

N/A

170 sq. ft.

455 CFM

5

Skonyon

Skonyon Portable Evaporative Air Cooler Fan with LED Display and Remote Control BL-198DLR

Skonyon Skonyon	Portable Evaporative Air Cooler Fan with LED Display and Remote Control	BL-198DLR 1枚目
3.80

Customizable Timer Settings Can't Make Up for a Lack of Cooling Power

3.60
3.90
3.93
4.44

13.8 in.

15.7 in.

32 in.

18.75 lbs.

3 gal.

80W

120V

3

1 hrs.

12 hrs.

57.4dB

62.1dB

N/A

N/A

-

350 CFM

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No.1
Top Choice Evaporative Coolers
No.1 in Cooling ability
No.1 in Ease of use

HoneywellIndoor/Outdoor Evaporative Air Cooler CO60PM

Overall rating

4.11

  • Cooling ability
    4.44
  • Ease of use
    4.14
  • Low noise
    3.48
  • Energy efficient
    4.02
Indoor/Outdoor Evaporative Air Cooler	CO60PM Image 1
Lowest price
$599.99
Tank capacity15.9 gal.
Continuous water suppy
Recommended room size850 sq. ft.
Air flow capacity1540 CFM
Energy consumption
220W
Lowest noise level
66.8dB
Highest noise level
68.9dB

mybest's Top Choice! Cooling Power From Wall to Wall and Hassle-Free Refilling

The Indoor/Outdoor Evaporative Air Cooler by air conditioner maker Jmatek's Honeywell brand keeps only the vital features so it can deliver a powerful air current. Boasting three large pads, its cooling power is second to none. After running it for 30 minutes, the temperature in the room dropped to 73.9 degrees with humidity of 58.8 percent. The heat index also dropped two levels from "hot" to "warm." We could tell immediately after walking back into the room just how much cooler it had become, so you can expect this evaporative cooler to be highly effective. It also produced a strong air current so you can stand right in front of it for instant relief.


This cooler can be connected to a hose for continuous water supply, and with a large 16-gallon tank, you won't need to frequently refill it even if you aren't using a hose. And finally, you'll be glad to hear the water inlet is on the top of the unit, meaning you won't need to bend over again and again to refill the water. On the downside, this cooler doesn't come with any additional features like a timer or remote control. It's best used for spaces like your living room, garage, or patio, where you won't need to turn it on and off frequently.


The amount of energy it consumed was similar to that of an industrial fan. It's much cheaper than using an air conditioner, so we can confidently recommend it to people who want to keep their electric bill in check. The tradeoff for its powerful breeze, however, is the amount of noise it produces. The lower setting made 66.8 decibels of noise, with the highest setting getting up to 68.9 decibels. It's enough noise to make conversation difficult even on the lower setting, so it's not the best choice for people who value peace and quiet in their living room, and would definitely interrupt your sleep.


But even so, it's still highly praiseworthy for its excellent cooling power, the ease with which it can be refilled, and low energy consumption. This evaporative cooler gets our highest recommendation for surviving hot summer days in dry regions.

Width18.3 in.
Length27.6 in.
Height40 in.
Weight41 lbs.
Supported voltage110-120V
Fan speeds3
Timer minimum-
Timer maximum-
Integrated heaterN/A
Remote controlN/A
Casters/wheels
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No.2
No.1 in Cooling ability

HessairePortable evap cooler MC37M

Overall rating

4.10

  • Cooling ability
    4.44
  • Ease of use
    4.02
  • Low noise
    3.63
  • Energy efficient
    3.81
Tank capacity10.3 gal.
Continuous water suppy
Recommended room size950 sq.ft.
Air flow capacity3100 CFM
Energy consumption
250W
Lowest noise level
62.3dB
Highest noise level
66.4dB

Cools Your Whole Living Room in Just 30 Minutes, With Continuous Water Supply as an Added Bonus

Pushing itself as able to maintain a cool breeze for a full four hours straight is the Portable Evap Cooler by Hessaire, a fan and air conditioner producer based in Cullman, Alabama. This cooler uses three large water pads. The temperature in the room came down to 73.7 degrees and the humidity to 48 percent after 30 minutes, with the heat index at "warm." Used in a dry climate, this cooler will certainly let you forget just how hot it is outside.


But compared to the evaporative cooler that took first place, this one has a relatively smaller water tank at just 10.3 gallons. The water inlet is near the bottom of the unit, which means you would have to bend over repeatedly if you were to refill it manually. But it is compatible with a hose for continuous water supply, so if you've got a faucet to connect it to, the size of the tank shouldn't bother you. This cooler had the largest energy consumption out of all the products we looked at, but even so, it's still significantly less than what an air conditioner uses, which people who want to save on their electric bill in the summer will appreciate.


But remember that powerful cooling ability doesn't come without noise. The stronger setting on this cooler produced 66.4 decibels of noise and the lower setting produced 62.3 decibels, both of which would interrupt normal conversation in a smaller room. But the large size of the unit means you probably wouldn't use it in your bedroom to begin with; it's best used in a spacious living room, patio, or garage.


As long as you can connect it to a water supply with a hose, this cooler is just as easy to use as our number one choice. And with its cheaper price, you'll get the same level of cooling power on a budget. Just make sure you've got the setup for continuous water supply.

Width16 in.
Length24 in.
Height38 in.
Weight40 lbs.
Supported voltage115V
Fan speeds3
Timer minimum-
Timer maximum8hrs.
Integrated heaterN/A
Remote control-
Casters/wheels
No.3

Hessaire ProductsPortable Evaporative CoolerMC18M

Overall rating

3.94

  • Cooling ability
    3.90
  • Ease of use
    3.90
  • Low noise
    3.99
  • Energy efficient
    4.20
Tank capacity4.8 gal.
Continuous water suppy
Recommended room size500 sq. ft.
Air flow capacity1300 CFM
Energy consumption
85W
Lowest noise level
57.0dB
Highest noise level
60.0dB

Sized Perfectly to Cool Down Your Bedroom or Other Small Spaces

Touting its compact size as its claim to fame, Hessaire's Portable Evaporative Cooler has a handle on top so you can easily carry it around from room to room. While it doesn't use as many pads as the other, larger products we looked at, they're still big enough to get the job done. After running for 30 minutes, the temperature in the room had come down to 78 degrees and the humidity was at 47.5 percent, with a heat index of "warm." The heat was noticeably more tolerable after the test, and if used in a smaller room it would be more than enough cooling power to stay comfortable.


Even though this is a compact model, it can be attached to a hose for continuous water supply, so if you've got a faucet nearby, there's no need to worry about the tank going empty. We also appreciated that it was light enough to be picked up with one hand, which makes it easy to carry if you want to use it both indoors and outdoors. This cooler used less power than an air conditioner and was comparable to that of a tower fan. But of course its advantage over a tower fan is that you can bring the temperature down in a room, so keep it in mind if you're looking for something with a clear cooling effect that won't send your energy bill through the roof.


We found it produced 60 decibels of noise when on high and 57 decibels on low. You should be able to keep it on in your living room without distraction, but it might be too much to keep it on while sleeping. Finally, it has the benefit of being slim in depth and doesn't take up much space. This cooler is perfect for keeping smaller rooms in your home, like your bedroom or office, cool and comfortable.

Width12 in.
Length20 in.
Height28 in.
Weight16 lbs.
Supported voltage110-120V
Fan speeds2
Timer minimum-
Timer maximum-
Integrated heaterN/A
Remote controlN/A
Casters/wheels
No.4
No.1 in Low noise
No.1 in Energy efficient

SkonyonSkonyon 3-IN-1 Evaporative Air Cooler Portable Fan Cooling

Overall rating

3.82

  • Cooling ability
    3.60
  • Ease of use
    3.72
  • Low noise
    4.50
  • Energy efficient
    4.47
Tank capacity0.8 gal.
Continuous water suppyN/A
Recommended room size170 sq. ft.
Air flow capacity455 CFM
Energy consumption
65W
Lowest noise level
42.9dB
Highest noise level
47.9dB

Quiet Enough to Use While Sleeping, but the Effect is Negligible

Skonyon touts its 3-in-1 Evaporate Air Cooler as being portable and packed with features. It was able to bring the temperature down to 84.2 degrees and the humidity to 21.1 percent after 30 minutes, which is a noticeable change but comes up short when compared to the more powerful products we looked at. The heat index came down one level from "hot" to "very warm." This isn't a significant difference from what you would get simply by opening the windows for ventilation, and we can deduce that the smaller pads didn't vaporize as much water. You can use it to aim a cool breeze on you the same way you would with a fan, but don't expect it to greatly bring down the temperature in the room.


The tank only holds up to 0.8 gallons, and it isn't compatible with a hose for continuous water supply. Considering its low cooling power, it isn't meant to be used outdoors. But it has the added convenience of a remote control and a timer which can be set up to seven and a half hours. While it can't produce a very strong breeze, this means it's relatively quiet and uses less energy, only about as much as a small fan would. On the lower setting it made 42.9 decibels of noise and 47.9 on the higher setting, which most people could sleep through. But considering that it won't make your room much cooler to begin with, you'll need to think carefully about whether it's really worth bringing into your home.

Width11 in.
Length9.8 in.
Height21.25 in.
Weight9 lbs.
Supported voltage110V
Fan speeds3
Timer minimum0.5 hrs.
Timer maximum7.5 hrs.
Integrated heaterN/A
Remote controlN/A
Casters/wheels
No.5

SkonyonSkonyon Portable Evaporative Air Cooler Fan with LED Display and Remote Control BL-198DLR

Overall rating

3.80

  • Cooling ability
    3.60
  • Ease of use
    3.90
  • Low noise
    3.93
  • Energy efficient
    4.44
Tank capacity3 gal.
Continuous water suppyN/A
Recommended room size-
Air flow capacity350 CFM
Energy consumption
80W
Lowest noise level
57.4dB
Highest noise level
62.1dB

Customizable Timer Settings Can't Make Up for a Lack of Cooling Power

The Portable Evaporative Air Cooler Fan with LED Display and Remote Control by Skonyon is intended for indoor use and claims to disperse negative ions. Even after running it for 30 minutes on its highest setting, we still didn't feel a large dip in the temperature. We measured the room temperature at 87.1 degrees with 17 percent humidity and a heat index of "very warm". We could feel the difference compared to the other products we tested the moment we walked into the room. It's unlikely you'll be able to cool down an entire room with one of these running.


The water tank is small and can't be connected to a hose, but it did have some other features that gave it a high score for ease of use. It has a remote control, the timer can be set for up to 12 hours, and on top of that it was the only product we looked at with a detachable water tank, so you can fill it up directly at the sink. The amount of energy consumed by this cooler is more or less the same as a common fan. But be aware that its cooling power isn't significantly greater than that of a fan, either.


Although its cooling ability is low, it was able to produce a reasonably strong wind current, with 57.4 decibels of noise produced on its lower setting and 62.1 decibels on the higher setting. Despite the inclusion of a remote control, it would be too loud for most people to have on while sleeping.

Width13.8 in.
Length15.7 in.
Height32 in.
Weight18.75 lbs.
Supported voltage120V
Fan speeds3
Timer minimum1 hrs.
Timer maximum12 hrs.
Integrated heaterN/A
Remote control
Casters/wheels

How We Tested the Evaporative Coolers

Evaporative Coolers Evaluation
For this list we rated five of the bestselling evaporative coolers on sites like Amazon and Walmart to make it easier for you to choose one. At mybest we define high quality evaporative coolers as those that not only lower the temperature in a dry climate, but are also easy to refill and reasonably quiet.

We evaluated each one on the four following points.


  • How much cooling power does it have?
  • How easy is it to use?
  • How much noise does it make?
  • Is it energy efficient?

Products we tested

  1. HessairePortable evap cooler MC37M
  2. Hessaire ProductsPortable Evaporative CoolerMC18M
  3. HoneywellIndoor/Outdoor Evaporative Air Cooler CO60PM
  4. SkonyonSkonyon Portable Evaporative Air Cooler Fan with LED Display and Remote Control BL-198DLR
  5. SkonyonSkonyon 3-IN-1 Evaporative Air Cooler Portable Fan Cooling

Test① Cooling Ability

Cooling Ability

The entire purpose of buying an evaporative cooler is for it to make your home cooler and more comfortable. So the first point we looked at was how much cooling power each one has. For the sake of consistency, we tested each cooler in a 445-square-foot room where the temperature and humidity could be controlled. Imagining a hot summer day in Phoenix, Arizona, we decided on a temperature of 100 degrees and humidity of 20 percent.


We then filled each cooler's tank with water, and for those that came with cooling gel we added the frozen gel pack to the tank. Once the room was raised to the correct temperature, we stopped all methods of maintaining temperature or humidity as to not affect testing. We then turned the evaporative coolers to their highest settings and let them run for 30 minutes. As they require ventilation, we also left a door in the room cracked open while they were running. We placed two temperature data loggers in each corner of the room, one 50 inches above the floor and one five inches above the floor, as well as one three feet away from the air vent, and recorded the temperature every minute. We also measured the speed of the wind at the air vent.


Using the average temperature and humidity over 30 minutes, we referenced the National Weather Service's heat index calculator to find the apparent temperature, or how hot it feels. Products that kept the room cool enough to avoid the risk of heat exhaustion while also producing a strong enough breeze to feel the cool air on your body were given the highest scores.

Test② Ease of Use

Ease of Use
Even if it has powerful cooling ability, we wouldn't recommend an evaporative cooler that constantly needs to be refilled or is hard to move around. So we looked at each product's ease of use next. We decided which aspects of an evaporative cooler are most vital given the various situations they're used in, and then added up the scores in each category. The following points are ordered from most to least important.

  • How much water can the tank hold?
  • How much does the unit weight?
  • Can a hose be connected to the water tank for continuous water supply?
  • How many levels of air flow are there?
  • Is it easy to move? Are casters provided?
  • Can you remove the pad?
  • Is a remote control included? If so, does it have the same functions as the panel on the unit?
  • Is the water inlet on the top of the unit?
  • How easy is it to refill the water? Is the water tank detachable?
  • Does it have a timer?
  • Does it have a setting to automatically turn off if the tank is empty?

Test③ Noise Level

Noise Level

The sound of a fan spinning is louder than you're probably thinking. Since you'll be running your evaporative cooler all day in the hot months, you'll want the one that makes the least amount of noise possible to not drown out your conversation. That's why we graded each one on its noise level while running. First, we made sure there were no other sources of noise in the room. Then we measured the amount of noise picked up three feet away from each evaporative cooler on its lowest and highest setting, and took the average of those two numbers. Those that made less noise than a standard fan and were quiet enough to use while sleeping got the best score.

Test④ Energy Efficiency

Energy Efficiency

People who are considering getting an evaporative cooler for their home may be concerned about how it will affect their electric bill. So we looked at how much power each one consumes. During the tests on cooling ability, we used an energy monitor to calculate the energy consumption from each cooler when turned to its highest setting. We compared the energy consumed by the evaporative coolers to other products like air conditioners and fans, and gave the best scores to those that had similar energy consumption to standard fans.

Top 5 Evaporative Coolers

No. 1: Honeywell | Indoor/Outdoor Evaporative Air Cooler CO60PM

No. 2: Hessaire | Portable evap cooler MC37M

No. 3: Hessaire Products | Portable Evaporative Cooler | MC18M

No. 4: Skonyon | Skonyon 3-IN-1 Evaporative Air Cooler Portable Fan Cooling

No. 5: Skonyon | Skonyon Portable Evaporative Air Cooler Fan with LED Display and Remote Control BL-198DLR

View Full Ranking

When you purchase products mentioned in the article, part of the sales may be returned to mybest.

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