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11 Best Eco-Friendly Air Conditioners (Energy Efficient)

Elevate your home comfort sustainably with our selection of eco-friendly air conditioners. These innovative cooling systems offer energy-efficient solutions, reducing your carbon footprint with features like programmable thermostats and low-impact refrigerants. Ideal for the eco-conscious, they ensure a comfortable indoor climate without compromising the environment.

In choosing the best eco-friendly air conditioner, prioritize energy efficiency ratings like SEER and EER, eco-friendly refrigerants, and the right capacity for your space. Our carefully researched recommendations highlight air conditioners that blend top performance with sustainability, promoting a cooler, greener home environment.


Best Eco-Friendly Air Conditioners

With heightened awareness of our environmental impact, we’ve searched extensively to bring you a collection of eco-friendly air conditioners that not only excel in energy efficiency but also boast eco-conscious manufacturing practices.

Our selection prioritizes units that deliver optimal cooling performance with minimal carbon footprints, ensuring you can stay comfortable while supporting sustainability.

1. Midea U Inverter AC

After setting up this Midea unit in our home office, we immediately noticed a significant drop in noise and a pleasant, consistent cooling throughout the room.


  • Exceptionally quiet operation transformed our space into a peaceful haven.
  • Installation was a breeze with the quick-snap bracket and the unit’s design allowed us to still enjoy a fresh breeze from the outside.
  • Smart features like app control and voice commands with Alexa/Google Assistant made adjustments convenient.


  • The sheer weight of the unit might require an extra set of hands during installation.
  • Those not tech-savvy may underutilize the smart functions.
  • The included bracket could be more accommodating for various window sizes.

We appreciated the sleek design of the Midea U Inverter AC; it hugged the window nicely and didn’t obstruct our view. The ability to open the window even with the unit in place was a welcome feature, we could enjoy fresh air without any hassle and without any compromise to the security of our home.

Energy efficiency was another high point. We could see the difference in our energy bills thanks to the unit’s inverter technology. It’s reassuring to use an appliance that’s easy on the wallet and the planet.

Finally, the smart capabilities allowed us to tweak settings from anywhere, adapting to our schedule and preferences. Whether we needed to cool the room before arriving home or just didn’t want to leave the couch, control was always at our fingertips.

2. CuisinAid Eco AC

Our home feels refreshingly cool with the CuisinAid Eco AC, making it a top pick for energy-conscious households.


  • Quick cooling with energy efficiency
  • Simple installation process
  • Quiet operation integrates well into any home


  • Limited to smaller spaces around 350 sq. ft.
  • Window size requirements can be restrictive
  • Smart features depend on reliable WiFi

Upon setting up the CuisinAid Eco AC, we noticed immediately how it transformed our stuffy room into a chilled sanctuary. It’s been a breeze selecting the ideal mode thanks to its multiple cooling options, maintaining our comfort while keeping energy bills low. The fan-only mode is particularly nice on days when we seek a gentle breeze rather than full-on cold air.

The installation, to our delight, was far from daunting. No need to call in a pro; we had it securely gracing our window and humming softly within 15 minutes. This clever design undoubtedly saves time and hassle.

Admiring the quietness of its operation, we’ve found it’s possible to enjoy a peaceful ambiance, with the machine’s sounds akin to the quietest whisper often lost amidst mundane household noises, a boon for our work-from-home days and restful nights.

As eco-friendly solutions become more essential, this air conditioner delivers on its promises. Our smart devices easily connected with the unit, providing the luxury to adjust settings from any corner of our space, so long as our WiFi plays along.

Yet, not all rooms are suitable for this gem, as it caters to a specific square footage and window specifications. Adaptability may be an issue for some, but for our medium-sized room, it has been nothing short of a summertime hero.

3. ZAFRO 8K BTU Portable AC

We find this ZAFRO unit to be a solid choice for those in need of an energy-efficient air conditioner that can be moved easily between rooms.


  • Delivers effective cooling with less energy consumption.
  • Versatile 3-in-1 modes for personalized comfort settings.
  • Operates quietly, making it suitable for night time use without disruption.


  • The exhaust hose may retain heat, potentially requiring additional insulation.
  • Some users report difficulty with installation due to window compatibility issues.
  • A few cases of cosmetic damage and underperformance have been noted in customer reviews.

When our central AC took a hiatus last summer, we were in a bit of a scramble to keep cool. The ZAFRO 8,000 BTU Portable Air Conditioner came to the rescue, rolling smoothly into our bedroom and offering an immediate reprieve from the heat. Setting it up was a breeze; the digital display and remote control made it easy for us to adjust the settings to our comfort without fumbling around.

The cooling effectiveness of this unit impressed us. It managed to bring down the temperature in our 300 square foot living area without breaking a sweat, and it did so while going easy on our electric bill. The dehumidifying feature was a boon too – it noticeably improved the air quality and gave us a less clammy environment.

While the unit is generally quiet, we did find that the exhaust hose gets quite warm during long periods of use. It wasn’t a deal-breaker, but we would recommend considering some sort of insulation wrap for it to avoid any heat leakage back into the room.

For the most part, our nights were peaceful, thanks to the low noise levels, and we enjoyed undisturbed sleep even on the hottest evenings.

4. COSTWAY 8000BTU Portable AC

We found this portable AC to be a game-changer during the sweltering summer days, effectively cooling small spaces with ease.


  • Quick and effective cooling for areas up to 230 sq.ft.
  • Versatility with dry, fan, and sleep modes alongside cooling
  • Easy to maneuver with its portable design


  • Noise level might be intrusive in quieter settings
  • Manual drainage required for optimum performance
  • Window kit compatibility is limited to certain window types

Recently, we’ve had the opportunity to use the COSTWAY 8000BTU Portable AC in our high-heat workspaces. Our initial impressions were of a compact and sleek-looking unit that promised to deliver a cool reprieve from the heat.

It wasn’t long before we realized just how capable this air conditioner was. Wheeling it in was a breeze, thanks to the caster wheels, and it fitted snugly in the chosen spot.

Setting up the COSTWAY Portable AC was straightforward. The window kit installed without hassle, aligning well with our sliding windows. After turning it on, the unit got down to business, noticeably reducing the temperature in no time. The 8000BTU’s obviously packed a punch, circulating chilled air rapidly across the room with adjustable vents providing targeted airflow.

We appreciated the simplicity of the user interface; even the remote control was intuitive to operate, allowing us to adjust settings from across the room. The sleep mode was especially useful, maintaining a cooler temperature without the disturbance of a louder fan speed, proving that function need not sacrifice comfort. And with the energy-conscious among us in mind, the efficiency of this appliance didn’t go unnoticed.

However, we noticed the unit could be quite audible at times, particularly at high-speed settings, possibly competing with conversations in a home office setup. Additionally, manual drainage was a bit cumbersome but manageable. While the provided window kit fit well for us, it’s important to check compatibility with your own window types before purchase.

In sum, our experience with the COSTWAY Portable Air Conditioner was largely positive. Its user-friendly design and robust cooling capability made it stand out as a reliable option for those hot and humid days. Despite a few drawbacks, it’s a solid choice for anyone in need of a portable cooling solution.

5. COSTWAY 12000BTU Eco AC

After installing the COSTWAY 12000BTU Mini Split Air Conditioner & Heater, we found it to be a reliable choice for those seeking to balance eco-friendliness and home comfort.


  • Remarkable efficiency leading to potential cost savings
  • Versatile with heating and cooling capabilities for all-season use
  • Feature-laden with modes like ECO and auto-cleaning for added convenience


  • The self-installation process might be challenging without professional help
  • Could encounter issues with the R32 refrigerant availability
  • Some may find the initial cost investment to be relatively high

Having set up and used the COSTWAY 12000BTU Eco AC in our space, we can attest to its ability to quickly regulate temperatures, making it feel like a sanctuary on hot or cold days.

This unit’s eco-friendly approach reduces energy consumption without sacrificing performance. The inverter technology helps maintain a consistent temperature, which means we’re not experiencing the usual fluctuations that lead to discomfort.

We particularly enjoyed the whisper-quiet operation of this air conditioner. Whether it’s movie time or we’re craving a nap, the low noise levels ensure our peace isn’t compromised. Moreover, the air quality in our room improved, thanks to the unit’s self-cleaning feature that promises a fresher environment.

It’s evident that the manufacturer focused on user convenience when designing this AC. With functionalities like the iFEEL mode, the system adapts to our presence, delivering optimal climate control tailored to our immediate surroundings. However, while the installation was manageable, we would advise enlisting a professional’s aid to guarantee a seamless setup.

Overall, the COSTWAY 12000BTU Eco AC exceeded our expectations for an air conditioner that’s environmentally conscious and user-friendly.

6. COSTWAY 10000BTU Portable AC

We think the COSTWAY 10000BTU Portable AC is a solid choice for those who need a quick cooling solution for small to mid-sized rooms.


  • Exceptional at quickly chilling small spaces
  • Offers convenient features like remote control and timer
  • The sleep mode feature ensures a comfortable night’s rest


  • A bit too much power for single, small rooms if you’re looking for subtlety
  • The noise level might be intrusive for some, particularly in quieter environments
  • Requires regular draining of water, which could be a hassle

Having experienced the COSTWAY Portable Air Conditioner firsthand, I must say its performance in small living spaces is impressive. The unit blasts cold air with gusto, bringing down the temperature considerably in no time—a lifesaver during those scorching summer days.

The array of operational modes is a boon. Whether needing to reduce humidity with the drying function or seeking a gentle breeze with the ventilating option—this air conditioner has us covered. The humanized sleep mode is a thoughtful addition, gently increasing the temperature overnight to prevent any chills.

However, attention to detail is crucial when setting up this unit. Its powerful output can be overwhelming for compact rooms if left unchecked. Moreover, while its operational hum is standard for such devices, sensitive ears might find it a tad obtrusive, especially at night.

To sum up, the COSTWAY 10000BTU Portable AC is especially effective for those urgent heat waves. It’s a robust machine that’s ready to deploy its cooling prowess on command. Despite its few downsides concerning noise and power management, its efficiency overshadows these hiccups, and we’ve found it to be a trusty companion through the highs and lows of the season.

7. Keystone 10,000 BTU AC

We recommend the Keystone 10,000 BTU Window Mounted Air Conditioner for its consistent cooling capabilities and user-friendly features.


  • Intuitive remote control with built-in thermostat
  • Notable energy-saving modes and programmable timer
  • Hassle-free filter maintenance with alert system


  • Lacks Energy Star certification
  • Operates at a noise level that may be noticeable
  • Absence of batteries for the remote might be an inconvenience

Our initial experience with this Keystone model has been a positive one. The cooling efficiency is remarkable; our living space reached a comfortable temperature swiftly. The built-in thermostat in the remote is a standout feature. It adjusts the cooling based on our location within the room, ensuring a consistent temperature throughout.

Energy consumption is always a concern, but not so much with this unit. The energy saver mode, alongside the 24-hour programmable timer, contributes to lower electricity bills. We appreciated being able to set it and forget it, knowing that we’re still using energy judiciously.

Maintenance-wise, the filter is simple to remove and clean. Plus, the convenient ‘Check Filter’ alert is a handy reminder for a task that’s often forgotten. It’s these details in design that save time and effort after installation.

On the downside, some of us were slightly put off by the noise level. At 59.5 dB, it’s not the quietest on the market. Also, not having an Energy Star certification means it may not be the most efficient model available. Lastly, it’s a minor gripe, but having to supply our own AAA batteries for the remote was a bit of an initial nuisance.

In summary, our time using the Keystone air conditioner has left us impressed with its features and overall performance. Despite a few drawbacks, its pros make it an appealing choice for those in need of escaping the heat while being mindful of the environment.

8. Ivation Smart Portable AC

If you’re in market for a versatile air conditioner that you can control right from your phone, this Ivation unit stands out as a reliable option.


  • Remote app control convenience
  • Effective cooling and dehumidifying functions
  • Easy setup with manageable noise levels


  • May be too loud for some users
  • Not suitable for very large spaces
  • Requires grounding which may need additional setup

Having recently had the pleasure of using this Ivation Smart Portable AC, it became immediately clear that its remote app functionality is a standout feature. Through the My Ivation App, our entire experience was simplified; controlling temperature, mode, and fan speed became a breeze.

This unit was thoroughly tested in a moderately sized home office, and within just a short amount of time, the room transformed into a chilly haven from the outdoor heat. Credit to the 12,000 BTU cooling capability, albeit the space must not exceed 450 square feet for optimal efficiency.

Moreover, the portability of this air conditioner is highly appreciated, moving it from the living room to the bedroom required minimal effort, thanks to its compact size and smooth-rolling wheels. Installation couldn’t have been easier, and while some portable units can be on the noisier side, this model operated at a level that didn’t disrupt our daily activities. However, noise sensitivity varies, and what we found tolerable might not be the same for you.

One thing to note, the device requires a proper ground connection. This could mean an extra step in the installation process depending on your home’s electrical setup.

In summary, we found this Ivation Smart Portable AC to be a smart addition to our home cooling arsenal. With efficient cooling and dehumidifying power, plus the modern conveniences of app control and portability, it’s an excellent fit for anyone looking to escape the heat in a medium-sized room. However, do consider the potential for noise if you prefer a very quiet environment, and ensure your space is suitable for this unit’s capacity.

9. Joy Pebble 10k BTU AC

If you’re seeking an environmentally conscious way to beat the heat, this Joy Pebble unit is a strong contender.


  • Impressive cooling in small spaces
  • Multifunctional with dehumidifier and fan modes
  • User-friendly interface and remote control


  • Not suited for larger areas
  • Some users report it’s less efficient in extreme humidity
  • Mild noise level may be noticeable

We had the pleasure of installing the Joy Pebble Portable Air Conditioner in a modestly sized study. This unit was straightforward to set up right out of the box, which made the experience hassle-free.

When powered on, the crisp, cool air began to circulate immediately, providing a welcome relief from the outside heat. We appreciated that this air conditioner was also adept at removing excess moisture thanks to its dehumidifying function, keeping the room comfortably dry.

On particularly hot days, we were impressed by how efficiently the unit maintained a cooler temperature within a confined space. Shifting this air conditioner from room to room was a breeze due to the lightweight and compact design, enhanced further by the built-in wheels. The inclusion of a fully functional remote allowed us to make adjustments without interrupting our workflow, a small but significant convenience.

While the Joy Pebble air conditioner excelled in smaller rooms, it struggled to exert the same level of cooling when used in larger, open-concept areas. During a humid spell, the unit worked harder, which became evident in our utility bill, despite its eco-friendly promise.

Additionally, the operational noise, although relatively low, was noticeable during quiet evenings. However, by and large, it proved to be a reliable and eco-friendly choice for our cooling needs.

10. ROVSUN 12,000 BTU AC

We found this air conditioner to be a compelling choice for environmentally conscious buyers looking to keep cool and reduce energy costs.


  • Seamless integration with smart home systems
  • Noticeably lowers your energy bill with ECO Mode
  • Ultra-quiet operation enhances living spaces


  • Installation requires professional expertise
  • May not perform as effectively in extremely cold climates
  • High upfront cost compared to traditional units

Our experience with the ROVSUN 12,000 BTU air conditioner has been largely positive, thanks to its sleek design and smart features. It’s been a genuine comfort bringing down the temperature in our sun-soaked living room while barely making a sound. The eco-friendly ECO Mode and the app-based controls are convenient, letting us adjust settings from wherever we are.

The heat mode has been a pleasant addition to our chilly mornings, warming up the space efficiently without the need for bulky portable heaters. The dehumidifying function has also been a boon, keeping the mugginess at bay during those sticky summer nights.

Given its impressive energy-saving features and environmentally friendly edge, we’ve found the initial investment in the ROVSUN unit to be justified. However, in the depths of winter, we’ve heard it might not keep up as robustly in extremely cold temperatures. Overall, the ROVSUN has been a reliable and stylish addition to our eco-conscious home.

11. De’Longhi Eco-Friendly AC

We believe your search for eco-conscious cooling ends with De’Longhi’s energy-efficient Portable Air Conditioner, ideal for reducing your carbon footprint while staying comfortable.


  • Energy-saving Cool Surround Smart Sensing for automatic comfort adjustment.
  • Remarkably quiet operation with Super Quiet technology.
  • Functions as an air conditioner, dehumidifier, and fan for versatile use.


  • No Energy Star certification, a con for the most environmentally conscious buyers.
  • Remote responsiveness could be more refined according to some user experiences.
  • Some room echo may amplify sound, affecting perception of noise levels.

Our experience with the De’Longhi Portable Air Conditioner has proven it’s not just about staying cool; it’s about being environmentally responsible without sacrificing comfort. The move to integrate automated adjustments to ambient conditions using eco-friendly technology simplifies our lives while underlining our environmental commitment.

The whisper-quiet performance impressed us the most. Even on the hottest days, the unit operated without becoming a nuisance. We could carry on with our daily activities or even drift off to sleep without any bothersome noise.

In rooms up to 700 square feet, this portable unit not only cools but also removes excess moisture, making the air feel fresh and comfortable. We’ve rolled it from one room to another without hassle, thanks to its thoughtfully designed casters—versatility at its best, we must say.

Buying Guide

Evaluating Efficiency

When selecting an eco-friendly air conditioner, efficiency is paramount. Look for the Energy Star label, which indicates devices that meet or exceed efficiency guidelines set by the U.S. Environmental Protection Agency (EPA). Seasonal Energy Efficiency Ratio (SEER) and British Thermal Unit (BTU) ratings are also critical; higher SEER and appropriately matched BTU values for your space ensure optimal performance with less energy consumption.

Efficiency Factors to Consider:

  • Energy Star Certification
  • SEER Rating: Aim for higher numbers.
  • BTU Rating: Must be suitable for room size.

Considering Refrigerants

Refrigerants are crucial in cooling systems, but some can be harmful to the environment. We aim for refrigerants with low global warming potential (GWP) and zero ozone depletion potential (ODP).

Refrigerant QualityDescription
Low GWPMinimally contributes to global warming
Zero ODPNon-damaging to the ozone layer

Smart Features

Modern air conditioners come with smart features that add convenience and further control energy use. Look for units with programmable thermostats and Wi-Fi connectivity for remote monitoring and control. These features can help us ensure the system runs only when needed, reducing unnecessary energy use.

Noise Levels

We consider the operational noise levels, as an eco-friendly air conditioner should not only be good for the environment but also for our living comfort. The unit’s decibel (dB) rating will inform us about the noise it generates.

Noise Level Considerations:

  • Decibel Rating: Lower dB for quieter operation.

By focusing on these features, we can make informed decisions for a greener and more energy-efficient cooling solution.


Sustainable air conditioners offer energy efficiency and reduced environmental impact. We discuss top brands, performance, and essential features.

What are some top-rated brands known for eco-friendly air conditioners?

Brands like Mitsubishi Electric, LG, and Daikin have garnered a reputation for producing air conditioners with advanced energy-saving technologies and environmentally sensitive refrigerants.

How does an eco-friendly air conditioning system reduce environmental impact?

Eco-friendly systems utilize refrigerants with lower global warming potential and include features that optimize energy use, such as programmable thermostats and variable speed compressors.

What features should I look for in a portable air conditioner to ensure it is eco-friendly?

Look for portable air conditioners with a high Energy Efficiency Ratio (EER), programmable settings, and the use of R32 or R290 refrigerants, which have a lower environmental impact.

What temperature setting on an air conditioner is considered most energy-efficient and environmentally friendly?

Setting your air conditioner to 78°F (26°C) when you are at home and increasing it to 85°F (29°C) when away can reduce energy usage and mitigate environmental strain.

How do green heating and air conditioning systems differ from conventional HVAC in terms of eco-friendliness?

Green HVAC systems often incorporate renewable energy sources, such as solar power, and use high-efficiency designs and materials, significantly cutting carbon emissions compared to traditional HVAC systems.