We understand the importance of staying cool and comfortable during the hot summer months. That’s why we spend hours researching the top models in each category so that you can purchase with confidence. In this article, we focus on the nine smallest window air conditioners on the market, each with unique features that we have highlighted and explained.

First up, in the number 9 spot, we have the Solus Air Exclusive 6000 BTU window AC, known as the first ever saddle unit. This model is built to straddle your window sill, allowing you to still be able to see out the glass panes, making it perfect for apartments or homes with only a small amount of natural light. The Solus Air Exclusive is arguably one of the easiest and safest window air conditioners to install. You may need help lifting it into place, but it is as simple as resting the unit on your windowsill. With an EER rating of 12.1, you can run it all the time during the summer without increasing your electricity bill too much.

In the number 8 spot, we have the Medea U Inverter, which might not be the smallest air conditioner physically, but due to its excellent design that allows you to still have full use of the window, we felt it should be included. The innovative U-shaped design allows you to essentially close your window on the unit with the compressor completely on the outside and the glass panes acting as a sound barrier. For this reason, the 8000 BTU model can run at just 42 decibels, making it one of the quietest options. With the new technology this design implements, you can achieve more than 35 percent energy savings over typical ACs.

Coming in at number 7 is the Emerson Quiet Cool, a 5000 BTU unit that is described by the company as a mini-compact AC. At just 12.5 inches tall and under 37 pounds, this little guy is the best air conditioner for small windows. It would be a great companion to take on the road, maybe to your cottage or even for tent camping. In addition to that, it also works to dehumidify your space. It can remove up to 1.3 pints of water per hour with no problem at all. With an EER of 11, the Emerson Quiet Cool only costs $41 to run annually.
Clocking in at number six, the Amana window unit is another 5000 BTU AC that is built with small spaces in mind. It weighs less than 40 pounds and can fit within a window width as small as 22 inches and as large as 35 inches. With an EER of 11.1, it’s not the most energy-efficient model on the market, but it can still conserve a good amount of electricity. One great feature is the easy maintenance; just remove and wash the filter when it’s time for cleaning. One drawback is when on medium or high, this unit tends to get rather noisy.

Our number 5 pick is the TCL 5000 BTU unit. It features an easy-to-install window mount design that can cool a space up to 150 square feet. Similar to other mini ACs on this list, the TCL dehumidifies the air while cooling and is capable of removing up to 1.37 pints of water from the air within an hour. It also includes 4-way directional louvers, allowing you to direct the air in whatever direction you wish and reach as much of the room as possible.

The number 4 spot on our list goes to the Frigidaire Mini Compact Window AC, the FFRE053S1, an excellent choice for small to medium-sized rooms up to 150 square feet. This model was certified by Energy Star in 2016 and has an impressive EER of 12.2. The estimated yearly cost of running the Frigidaire is about $40, but this depends on your cooling needs and habits. It fits well in compact window spaces with dimensions of 15.2 by 16 by 12 inches. On top of that, it weighs just over 40 pounds, so installation won’t be backbreaking. While the mini compact AC cools the room, it also dehumidifies, removing up to 1.1 pints of water from the air per hour. Recommended by Consumer Reports for its impressive Econ mode, if you plan to run this unit often, then this might be a good choice for you.

Taking the third place spot is the Medea MAW05M1BWT, a 5000 BTU unit that acts as a two-in-one appliance and can be used as a fan or window air conditioner. Like the previous model, this small window AC has mechanical controls and does not come with a remote control. What it does offer is seven temperature settings and two-way airflow. It also includes a removable filter that you can wash to further protect your room from dust and other allergens. Medea recommends that you wash the air filter weekly for premium performance. For installation, your window must be at least 13 inches high, and the sides can be configured to fit a width between 23 and 36 inches. The one downside to this Medea model is that it’s not Energy Star certified, but we found that by running this model seasonally, it only costs about $78 per year.

Today’s runner-up is the LG 5000 BTU window AC. This compact LG air conditioner is a fantastic choice for small rooms of up to 150 square feet. In an age where nearly everything is smart and Wi-Fi enabled, we actually appreciate the no-frills setup achieved with this model. The window air conditioner is a corded electric unit with manual controls, that means an old-school dial that you physically turn to reach the settings you want. There are two fan settings, low and high, and nine different cooling levels to help you reach your desired temperature. On a low setting, you can expect the sound level to reach about 52 decibels, which is roughly comparable to a hushed office space.

Last but definitely not least, we have the Frigidaire FFRA0511R1E Compact as our top pick. The unit has full-width top 2-way control for air direction, and it also comes with mechanical rotary controls. The mesh filter can be removed from the side and washed to reduce room odors, airborne particles, and bacteria. This makes for an environment that is both more comfortable and healthier for you and your family. The unit has a low power setting startup process that will save money by conserving energy. The restart function will automatically resume the AC once the power has been restored, operating at the earlier selected setting. This model is easy to install in your window and comes with two cooling and fan speeds in addition to its two-way air direction. It cools down the room very fast and keeps it cool for hours. At just 12 by 15 by 16 inches, this air conditioner is definitely a miniature unit, but side panels can be installed to make it fit into windows as wide as 36 inches. If you want a compact AC unit for your window, then this is the best choice.
In conclusion, there are many great small window air conditioners on the market that can effectively cool your small space. Whether you’re looking for energy efficiency, quiet operation, or easy installation and maintenance, there’s an AC unit out there that will meet your needs. We hope that this article has provided you with valuable information to help you make an informed decision and stay cool during the hottest months of the year. Remember, it’s important to consider the size of your room, your energy needs, and your personal preferences when choosing a small window AC unit. With the right air conditioner, you can enjoy a cool and comfortable summer season in your small space.
I have the Soleus and I would recommend it. It’s very easy to install and I find it works very well. I primarily use it for the dehumidifier mode and find it helps keep the room cool as well. If any questions regarding that model don’t hesitate to reach out.
I have the TCL it was never mentioned how loud and jarring the sound is when the compressor kicks in ,and also the fact you have to keep the the dial above 8 to operate cool ,and it cycles constantly ,so not much of a review,,