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5 Best Air Coolers for Closed Room – Consumer Reviews

One of the solutions to body heat, which is paramount in the summer, is having an air cooler. Whether for small room cooling or large ones, having the best air cooler for a closed room is basically the most efficient domestic way to control the atmospheric temperature with relative ease. Having the best personal air coolers in hot seasons is truly relieving.  I tested countless air coolers to develop a list of the best products to help you get started and make your search comfortable. I then chose the best one out of all of them to end the search. It’s 100 percent work done; all you need to do is read this article. 

My Top Pick – Honeywell CS071AE

With its 3-in-1 functionality, caster wheels for easy transportation, and low energy usage, this Honeywell air cooler is definitely my top choice. After all the tests I’ve done, no other appliance was able to match its convenience and versatility. So, what exactly do you get with this device? 

  • 3-in-1 functions: fan, air cooler, and humidifier 
  • Great mobility
  • Low-noise fan
  • …and much more! 

Top 5 Best Air Coolers For Closed Rooms

Today, most people prefer air coolers better than conventional methods, which speaks volumes about their importance, especially with millions spent on their market alone. If you are reading this, many of you intend to get one of these devices; I’m here to help. After weeks of careful testing, I narrowed my list to the 5 best air coolers for closed rooms. Each of them comes with a different price tag and varying sets of functions, so while I recommend you look into my top pick, make sure to keep your purchase in line with your needs. 

  1. Honeywell CS071AE 
  2. Costway Air Cooler and Heater 
  3. Evapolar EvaLIGHT
  4. Costway Evaporative Air Cooler 
  5. Evapolar EvaCHILL 

1) Honeywell CS071AE Quiet, Low Energy, Compact Portable Evaporative Cooler

Special features: A home appliance giant, Honeywell designs and produces several arrays of devices for domestic use, known to be top-notch and high-quality. This device is not an exception. It has quite a large mass and sits on caster wheels, but it operates quietly and consumes very low energy.

best air purifier for the price

This device is designed to perform the function of 3 products in 1. It is able to act as a fan for the simple blowing of air, a humidifier, and of course, an air cooler. With provision for water in its tank, this device cools the air with the air of evaporation, which releases water molecules into the atmosphere too, humidifying it in the process. Evaporation is achieved by having a fan blow water absorbed by its filter with a carbon dust filter standing in lime to allow only clean, fresh air through. You can run the fan alone for a pleasant old fashion breeze if you decide. For optimal air circulation, the fan of this product is designed with a patented brushless motor, which also makes it very quiet while in service. I also noticed that it doesn’t use compressors for cooling, but rather evaporation, which reduces the noise generated by a considerable margin. The timer feature is built into this device for the user’s flexibility and allows the device to only run for a particular amount of time and then go off, which I found very convenient. This device could be challenging to move with dimensions 9.8 x 15 x 25.4 inches, especially on a full water tank. This is why it was built with wheels below. I was able to push it around quickly and without too much trouble. Its settings can be changed from a distance with remote control for maximum comfort, or the old fashion style of pressing the buttons on the device. These buttons are located at the top side, and, from my experience, they are very easy to reach.

What I Like

  • Very quiet
  • It can be controlled remotely
  • 3-in-1 function – it can act as an air cooler, a humidifier, and a fan
  • Easy to move
  • Built-in timer feature offers full-purpose flexibility
  • It doesn’t consume too much energy

What I Dislike

A bit bulky in size

Key Features

  • 3-in-1 fan, air cooler, and humidifier
  • Remote control
  • Brushless motor
  • Built-in wheels
  • Carbon dust filter
  • Timer


Dimensions9.8x15x25.4 inches
Wattage50 watts
Weight15.5 lbs
Floor Area150 Square Feet

My Rating: 5/5

Like I said, this is my top pick. It’s a great air cooler with a fan and a dehumidifier. After the tests I’ve done, it delivers what it promises, regardless of the function I chose. Even though it’s on the bigger side, I found it easy to move around and control.

2) COSTWAY Air Cooler and Heater 

Special features: This Costway product is very ergonomic in design, with almost everything in a device that would make life easier for its user. However, it is simple in looks, though it has a powerful 5 in 1 combination of being an air cooler, heater, humidifier, and air cleaner and fan. That’s basically about 5 crucial electronic devices in one, and as a result, I would call it the most cost-effective device on our list. For user convenience, automatic features like the timer and remote control are also present.

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best air purifier for the price

Being primarily an air cooler, it uses evaporation like the Honeywell CS071AE I mentioned earlier. Fresh air is produced by a fan blowing a filter, while the fan can be run separately too, and for even more cooling air, there are two available compartments where ice can be added to further drop the temperature of air that leaves the device. I find it most useful in sweltering weather conditions. The air-cleaning part of it uses an ionizer, which simply generates negative ions, which attract themselves to particle contaminants in the air, making them too heavy to remain afloat in the air. The heater does the opposite of cooling, releasing heat accordingly, to increase the temperature level. This means that the device remains useful all year, both in cold and summer while keeping your environments clean during the days of natural, convenient temperatures – that’s what I noticed after thorough testing. I admit, 15 x 11 x 29.5 inches make it quite big in size. However, nothing hinders its mobility because of the wheels down below. For smooth interaction, the top is fitted with a digital display panel with indicators and buttons for interaction. I had no trouble moving it around, although I understand how it could be difficult for some. However, should you decide to keep the air cooler far away from your couch or bed, it can still be interacted with through remote control. It has a timer and a washable filter for cleaning the air, too, with a 7 liters water tank that would last for a fair amount of time. It also comes with an oscillatory motion design for more coverage area, which I found useful on many occasions.

What I Like

  • Multifunctional device – it can act as a fan, an air cooler, an air cleaner, a heater, and a humidifier.
  • User-friendly electronic display
  • The device is easy to move around
  • Oscillatory motion design 

What I Dislike

  • Big in size
  • Quite bulky and heavy
  • It can be noisy at times

Key Features

  • 5-in-1 function: fan, heater, air cooler, air cleaner, humidifier
  • Remote control
  • Built-in timer
  • Electronic display
  • Washable air filter
  • Water tank
  • Built-in handle and caster wheels
  • Oscillatory motion design


Dimensions15 x 11 x 29.5 inches
Wattage75 watts
Weight17 lbs

My Rating: 4.5/5

Castaway produced a high-quality, cost-effective device that can serve almost all purposes. Even though it’s a bit bulky and noisy at times, its standard features, such as remote control, electronic display, built-in handle and wheels, and oscillatory motion design, make it very handy and easy to use.

3) Evapolar evaLIGHT Personal Evaporative Air Cooler 

Special features: if you are looking for the most portable devices that come with the coolest designs, then you are absolutely on the right track, though the final puzzle piece should be that you intend to use it in a small space. This device looks very appealing, adding beauty wherever it is used and functions in the background without consuming much energy. This Evapolar device is also practically bacteria-resistant.

best air purifier for the price

It is designed to be more suited to tabletops, like placing it on your office desk or bedside, and only requires as little as 10 Watts of power to run. This means it can be connected to a computer or UPS asides from the standard power outlet socket. For maximum effectiveness, ensure it is placed very close by because, as I observed, it virtually cools the space immediately around it only. Despite its tiny dimensions, I was very impressed by how well it worked to cool down my room.  Being 6.7 x 6.7 x 6.9 inches in dimensions and 2.87 pounds in weight has advantages, including being handy and easy to carry about wherever you go. However, the disadvantage of a dwindled capacity exists too. The feature that stands out the most in this device is its resistance to any form of bacteria spread. When bacteria gets to the filter of any cooler, it becomes a significant problem and a question of replacing the filter or managing it that way. The choice is obvious. However, the filters are usually challenging to get to. This device uses specially designed patented non-organic evaporative pads, which prevent bacteria from spreading, eliminating the stress of going through any of those problems in the first place. It also acts as a humidifier and air cleaner asides from its cooling ability and is very cheap to run due to consuming only 10W of power. It is, however, a little bit loud while running, which I found somewhat of a nuisance. On the other hand, the noise is a small price to pay for this cooler’s mobility. Although it works very well for a bedroom, I wouldn’t count on it effectively cooling down a bigger area. 

What I Like

  • Portable and lightweight
  • It can act as an air cooler, air cleaner, and air humidifier
  • The design prevents bacteria from spread
  • Energy-efficient – consumes only 10W of power
  • Minimalistic, modern design
  • Can be powered by USB or power bank

What I Dislike

  • A bit loud
  • It can’t be used in bigger areas
  • Limited performance capacity

Key Features

  • Non-organic evaporative pads
  • Removable water tank
  • EvaBreezeTM patented evaporation technology
  • Low energy consumption


Dimensions6.69 x 6.7 x 6.87 inches
Wattage350 watts
Weight2.87 lbs
Floor area45 square feet

My Rating: 4.5/5

If you’re looking for a light and portable device that would cool the air and be as energy-efficient as possible, all within your personal space, EvaLIGHT by Evapolar will do the job for you. From my experience, though, it will only work in smaller areas, and it can sometimes get quite loud. 

4) COSTWAY Evaporative Cooler 

Special features: in case you decide to pass on the first Costway device on our list, then this presents a second chance, and not in appeal, but rather performance. This oscillatory tower-type air cooler is very portable, and would only take a small circular diameter off your total room space. It uses a fan-less design, which makes for very safe operation, and has a timer for more operational flexibility.

best air purifier for the price

At the very peak is an LED display for smooth interaction, with buttons for operating the device. Expanding more on its bladeless design, this allows the cooler to work more quietly, and also enhances safety around children, eliminating the risk posed by fans seeking a harsh relationship with children’s fingers. I found this feature particularly useful, as I didn’t have to chase after my kids to get them away from the fan. As a result, it is UL safety certified. Its dimensions are relatively small, at 11 x 11 x 41 inches, with the 41’s tall height. The height makes it closer for me and other people to reach, instead of the discomfort of bending towards the unit. Though it’s smaller than some of the models, I was disappointed not to find any wheels on this COSTWAY cooler. It definitely would have made moving it around much easier. It can also cover a full area while cooling due to its oscillatory rotation option, which can be turned on or off depending on its user. All these functions can be done and undone with remote control from a distance too. From my experience, I can say that the product can serve medium-sized rooms and comes with a timer for setting its working duration, though I found it a bit noisy while operating. I also noticed it needs to be placed close by for optimal effect because it doesn’t cool well enough to be felt from a distance.

What I Like

  • It’s a lightweight device that doesn’t take up too much space
  • Operational flexibility due to the built-in timer
  • The bladeless design makes it very safe to use, even for children
  • Oscillatory motion design
  • Different modes and wind speeds helped me adjust the temperature and air quality very well
  • Remote control and LED display are user-friendly and easy to use

What I Dislike

  • No wheels, which makes it a bit difficult to move
  • Quite noisy while operating
  • Doesn’t cover larger areas

Key Features

  • Remote control
  • Bladeless design for optimal safety features
  • LED display
  • Oscillatory rotation for expanded air supply range
  • 2 modes and 3 wind speeds
  • 6L water tank


Dimensions11 x 11 x 41 inches
Wattage70 watts
Weight13 lbs
Safety features

My Rating: 4.5/5

This cooler by COSTAWAY is a great choice, especially if you don’t want to buy large, bulky devices that would take up a lot of space in your room. If you have small children, I can assure you that the bladeless design makes it safe to use. It can get a little loud, but I think it does its job pretty well!

5) Evapolar evaCHILL Personal Evaporative Air Cooler 

Special features: This cooler is living proof that the Evapolar evaChill series always comes with unique designs. It is very good looking, with LED light glow by the side giving a suiting night light for users who fancy one. It is handheld, portable, and consumes minimal energy, which would not add to your energy bills.

best air purifier for the price

This device is also an evaporative cooler, which uses a fan to blow water off a filter until it evaporates and cools the air. Its filters are designed with a non-organic material, which means bacteria and other contaminations that thrive in moisture wouldn’t be able to grow on it. From my experience, it is also a 3-in-1 device because it can be used as an air conditioning fan and air cleaner besides its primary air cooling function. In my opinion, converting these many functions into one makes it a cost-effective device at a very reasonable price. However, it is suitable for only tiny spaces, because it cools just the immediate atmosphere around it (I recommend a maximum of 45 square feet). Despite its relatively small size and water tank, I found it can run for about 9 hours in total, before requiring a refill, and it works very quietly compared to the other Evapolar air cooler. It consumes precisely 7 watts, less than a lightbulb for virtually zero running cost. I admit it is quite fragile and should be handled with care.

What I Like

  • It’s a handheld, lightweight, and highly portable device
  • I can use it for numerous purposes: air cooling, cleaning, and humidifying
  • It has quite a long running time (up to 9 hours)
  • It doesn’t consume too much energy
  • Easy to operate (with just 1 button)
  • I can use it as an additional light source

What I Dislike

  • It covers only a small area
  • It seems a bit fragile to me
  • No remote control

Key Features

  • 3-in-1 air cooling, cleaning, and humidifying features
  • Patented evaBREEZE bazalt-based cartridge technology for safe use and breathing
  • LED light


Dimensions6.69 x 6.77 x 6.69 inches
Wattage7.5 watts
Weight16 ounces
Floor area25-45 sq ft

My Rating: 4.5/5

This Evapolar air cooler has almost everything I could ask for! It’s portable, lightweight, and even a night light. Even though it won’t cover a large area and is quite delicate, it’s also very easy to use and doesn’t generate additional energy costs.

What to know about the closed room and its ventilation

Because the room is closed literally, air fails to circulate properly and leads to stale air being present most of the time. Over time, the air could start to smell moist and stuffy, and we all know that all in that category isn’t any way comfortable to breathe in. Poor ventilation in closed rooms also leads to an ever-present warm or hot temperature, which is undoubtedly uncomfortable. Thick stagnant air coupled with warm temperatures can make falling asleep more suffocating than relaxing. In a nutshell, closed rooms mostly have poor ventilation, so I find air coolers especially helpful.

Room cooler vs. air conditioner in a closed room

A room cooler and an air conditioner basically serve the same purpose: to reduce the room’s temperature level. However, they go about it in different ways and have slightly different outcomes. And the air conditioner is a device that reduces temperature by circulating internal air in the room repeatedly, taking the hot air outwards, and replacing it with a cooler one. In my opinion, they are instrumental in cooling, far more effective than coolers, but always leave the air drier than anyone would want. Some have used a humidifier alongside this device to solve the problem. On the other hand, air coolers operate in a very different way, creating coolness through the evaporation of water. Hot air is blown on a water-absorbing filter, causing it to evaporate and cool the atmosphere. They need water to cool, and for more effect, you can always add ice cubes – from my experience, it’s a really handy hack. Air conditioners are more effective than coolers; however, the dry atmosphere they create is unhealthy and promotes the spreading of infections that thrive in such conditions, compared to air coolers that add moisture to the room. Air conditioners are also more expensive but require less attention than coolers. I’ve experienced that for an air cooler; it needs to frequently refill its water instead of just letting it run wild like the air conditioner. Air conditioners also have a negative effect on the environment, especially if the refrigerants used in cooling get out into the air. They are not as portable as coolers and would attract special installation costs. Also Read: Best Air cooler for Humid climate

How to choose an air cooler for a closed room: Appropriating sizing

The way I do it and what I recommend if you want to choose the best air cooler for your closed room is by looking out for its airflow rate measured in CFM (cubic feet per minute). This value shows how much air is cycled in a room per minute. In order to know the right CFM for your room, first calculate the area in square feet, then multiply by height and then divide by 2. For example, in a room of 200 sqft and height of 7ft, CFM required would be (300 sqft x 7ft) / 2 = 700 CFM. This means that the most effective air cooler for your room is a 700 CFM, though coolers with lower capacity might do just fine. They can’t be just as effective, though.

How do you cool a closed room with an air cooler?

When living in a closed room, placing an air cooler in the same room would be nothing short of discomfort over a short period of time. Trust me! This is a result of the fact that coolers also add humidity to the atmosphere. When there is no cross ventilation for moisture exchange, the air becomes oversaturated with moisture. Therefore, it is best to place an air cooler in an external spot just outside the room, or in a window where it fits perfectly.

Features to Consider When Choosing the Best Air Cooler For a Closed Room

A bedroom is a place where maximum comfort is felt in the home, which makes it essential to keep it as comfortable as it can be all year long. One of the necessary gadgets to get this done is the best air cooler for closed bedrooms. It is also essential to consider the space consumption in a bedroom since they aren’t correctly built to be spacious, which is why this same product should also satisfy the best small air cooler criteria.  From my experience, these are the features you should pay attention to when choosing the best air cooler for a closed room:


Since we are considering air coolers for closed-sized rooms, which mostly have a small capacity, the category of devices reviewed in this article is all tailored to fit medium-sized rooms at best. If your room is of a larger size, purchasing an equivalent capacity device that can effectively cool the place is your best bet.

Ease of Use

Convenience features in air coolers include a user-friendly digital control panel, which could come with a display screen for more ease. The remote control feature is also a nice one, allowing users to vary the device’s performance from a distance and change the mode in which it operates.

Multi-Purposed Device

If you read carefully across the review articles, you will discover that no device exists as an air cooler alone. I definitely recommend purchasing devices that are air coolers and more for maximum cost-effectiveness. Some extra features an air cooler can have without much stress include a humidifier, fan, and air cleaners.

Oscillatory Design

Devices with oscillatory functions either rotate physically or contain internal glides which change directions at the interval, varying the direction of air released, and covering a more substantial area per time than stationary air coolers. This gives it a cooling effect for multiple users at different locations in the room.


From my experience, I can say that air cleaners are usually bulky in size and kind of heavy, especially when with a full water tank. However, they remain portable too if they have wheels for users to roll them with. If you intend to move your air cooler frequently, then be sure to get one with this feature:

Ice Compartment Chamber

The ice compartment does just one job in the cleaner: adding cooler to the evaporated water molecules. With this chamber, one can easily reduce the temperature of cold air released, therefore reducing overall temperature faster. It is especially useful in warm weather conditions.

Final Verdict: Best Air Cooler For Closed Room

The best product is a close call between Honeywell CS071AE and COSTWAY Air Cooler, but ultimately, the Honeywell product came out on top of my list. The Honeywell is a 3-in-1 evaporative cooler with a fan and humidifier device, which makes it cost-effective, but it isn’t what made me give it the number 1 place above the COSTAWAY. Ultimately, I based my decision on an excellent cooling impact and a relatively large-sized water tank. It is energy-saving and quiet while operating, with automatic features like the timer and remote that enhance the user experience – it sure made mine better and more comfortable! The COSTWAY device, on the other hand, is a befitting match in capacity but ultimately falls lower in my ranking due to being unable to work for too long before a refill is required. It is, however, a 5-in-1 device comprising of an air cooler, heater, humidifier, air cleaner, and fan, which all operate in a quiet fashion. I also appreciate its oscillatory design because it covers a wide area, while the timer and remote controls for more comfortable use are also present in this air cooler.

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