10 Best Quiet Portable Air Conditioners in The UK

Last updated on 04/05/2025

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Bosch Cool 5000 with Inverter Technology Portable AC - 3-in-1: Air Conditioner, Dehumidifier, Fan - 3.4 kW for Rooms of up to 46 m² - With Auto Mode, Silent Mode & Sleep Mode

Why We Love It

Energy-efficient and powerful cooling.
Whisper-quiet operation at 44 dB.
Easy control with pre-programmed modes.

Main Highlights

Powerful cooling (3.4 kW) is now also energy-efficient (A+, 1 kWh/h) and quiet (44 dB(A)) thanks to the Inverter Technology of the Bosch Cool 5000
Save up to 30% energy*: The Bosch Cool 5000 mobile air conditioner efficiently cools rooms up to 46 m² in size and consumes up to 30% less energy (*compared to mobile air conditioners without Inverter Technology)
Quiet at last: Thanks to the Inverter Technology, the Bosch Cool 5000 is pleasantly quietly at just 44 dB(A) and without annoying start-stop noises
Bosch Easy Cool Select: Thanks to the pre-programmed modes (Auto mode, Silent mode, Sleep mode), you can select the right setting for your everyday situation with just one click
Easy to transport and operate: The integrated hose enables easy handling and compact storage. The air conditioner can be controlled via the self-explanatory LED soft-touch display or the remote control with integrated timer

Dreo Smart 3-in-1 Portable Air Conditioner, 12000 BTU Drainage-Free Cooling AC Unit, 46dB Silent Mobile Air Conditioners for Bedroom & Room, APP/Voice/Remote Control, 24h Timer with Fan & Dehumidifier

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Why We Love It

Powerful 12,000 BTU cooling.
Whisper-quiet operation for comfort.
Smart app voice control features.

Main Highlights

Go Big on Cooling Power: The DREO AC516S portable air conditioner brings massive 12,000 BTU ASHRAE cooling capacity that reaches up to 14 ft. Helping you keep the comfortable temp in the sweltering summer
Isolate Noise, Amplify Comfort: Featuring a new noise isolation system around the compresor, this portable air conditioners reduces noise down to a minimum 46dB, making it ideal for quiet places like bedrooms and offices
Drainage-free in powerful cooling when the humidify under 85%: Bring uninterrupted cold air to your room, thanks to DREO's new AC unit design, a dedicated condenser and water pump helps transfer excess water and reduces the need for drainage compared to traditional floor air conditioners
Smart Cooling at Your Fingertips: Use your favorite voice assistant (compatible with Amazon Alexa or Google Home) or the fully-featured Dreo App to control every aspect of your cooling experience, from multiple modes to fan speeds, timers and schedules, this standing AC has it all
3-in-1 Mode with Fan & Dehumidifier: Get more control of the way you cool thanks to the 3-in-1 mode including settings for cooling, dehumidifying and fan control in one, finding the ideal comfort setting is easier than ever with the DREO room air conditioner
Hassle-free DIY Installation with Universal Window Kits: Don't worry about the window type or size, this air conditioner for bedrooms features multiple panel combinations that are easy to fit and secure on any window (from 17" to 53")
Superb Customer Service: Our friendly customer support works around the clock to solve any issues and give you all the product guidance needed when using Dreo AC Series

De'Longhi Pinguino Compact PACES72 Classic Compact Portable 8,300 BTU Air Conditioner, 3 in 1 Air Conditioning Unit, Rooms up to 60m³, A Energy Efficiency, Window Kit Included, Energy Class A, White

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Why We Love It

Efficient cooling for large spaces.
Saves energy, reduces costs.
Convenient remote and timer features.

Main Highlights

COMPACT COOLING - Pinguino Compact is a 8,300 BTU powerful cooling solution for living rooms, bedrooms and offices up to 60m³
QUIETER COOLING - Pinguino Compact has a 50% noise reduction from max to min speed
ENERGY EFFICIENT - Class A Energy Efficiency rating, Refrigerant gas R290, which is up to 696 times more environmentally friendly than traditional gases (696 times compared to the impact of Global Warming of R410 - F-Gas Reg. 517/2014)
EASY TO USE - Manage all functions including temperature, fan speed, timer and cooling function, Control with remote control, or use touch controls on the unit, Integrated handles and castors wheels make for easy transportation
3 IN 1 FUNCTIONALITY - Enjoy ideal comfort thanks to this multifunctional 3-in-1 unit with 2 speed settings, Separate dehumidifying function (21l/ 24 hours) for especially wet seasons or humid rooms and separate fan function to simply circulate air
WINDOW KIT INCLUDED - Window kit is included with 1.5m hose length, for easy installation
WINDOW KIT & CASTOR WHEELS - Window kit is included with 1.2m hose length, for easy installation, Easily move your air conditioner to the room of your choice with ease thanks to the integrated handles and castor wheels for easy portability

Air Conditioning Unit - Portable Air Conditioner 9000 BTU, 4-in-1 Energy Efficient Cooling & Dehumidifier, Quiet Operation, Digital Display, Window Kit, 24-Hour Timer, Covers Up to 215 sq.ft (20㎡)

15% OffFree Shipping

Why We Love It

Versatile year-round climate control.
Whisper-quiet energy-efficient operation.
Easy to move and install.

Main Highlights

🌀【4-IN-1 MULTIFUNCTIONAL DESIGN】: This portable air conditioning unit integrates cooling, dehumidifying, fan, and sleep modes to meet year-round needs. With 2 fan speeds, it ensures optimal comfort in various environments. Whether it's a hot summer or a humid rainy season, this air conditioner can handle it all with ease, providing a comfortable indoor climate whenever you need it.
🌍【ENERGY-EFFICIENT & ULTRA-QUIET OPERATION】: Powered by a GMCC compressor, this portable air conditioner operates at a noise level as low as 52dB, making it perfect for bedrooms and offices. The R290 eco-friendly refrigerant and Class A energy efficiency rating not only reduce environmental impact but also help you save on electricity costs, making it a smart and sustainable choice.
🎮【SMART CONTROL & USER-FRIENDLY OPERATION】: Featuring an LED display and remote control, this air conditioning unit portable allows you to easily adjust the temperature (16-32℃), set the 24-hour timer, and monitor the water-full indicator. The child lock function ensures the safety of children and pets, making it a reliable and family-friendly appliance.
🏡【EASY INSTALLATION & EFFORTLESS MOBILITY】: Designed with built-in handles and 360° casters, this portable AC air conditioner can be moved effortlessly between rooms. The included window kit is compatible with horizontal and vertical sliding windows (17"-53"), enabling quick and tool-free installation. Whether it's your living room, bedroom, or office, this unit adapts seamlessly to different spaces, providing cooling wherever you need it.
💎【2025 UPGRADED DESIGN WITH STYLISH LOOK】: This air conditioner unit portable features a sleek, upgraded design with ABS frosted plastic for a premium feel. The intuitive control panel and clear display enhance usability, while the powerful airflow of 330m³/h ensures rapid cooling for rooms up to 20㎡. Enjoy a comfortable and refreshing environment in no time with this modern and efficient cooling solution.

DR.PREPARE 9000 BTU Air Conditioning Unit, 4-in-1 Portable Air Conditioner with Remote Control, Dehumidifier, Cooling Fan with 2 Speeds, 24H Timer & Sleep Mode, Child Lock, Dual Window Venting Kit

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Why We Love It

Portable and easy to move.
Fits most window types.
Offers intelligent sleep mode.

Main Highlights

[4-in-1 Portable Air Conditioner] In cool mode, it provides powerful cooling for rooms up to 30 sq. m, with a temperature range of 16℃~32℃. Ideal for hot summers and spaces with poor ventilation. Sleep mode, available only in cooling mode, maintains a quiet 45dB noise level for a peaceful night's sleep. Use fan mode for air circulation, and dehumidifier mode for removing up to 24.1L of humidity per day, perfect for damp or rainy days.
[Fits Most Window Types] Don't worry about your window type with Dr.Prepare's air conditioning unit. It includes two types of installation accessories: the window bracket kit fits horizontal or vertical sliding windows (from 25.6'' to 50''), while the window seal kit works for push outward, pull inward, casement, awning, and skylight windows (up to 157'').
[Intelligent Sleep Mode] When you activate sleep mode, the air conditioning unit will auto switch to low-speed operation, reducing noise levels to a quiet 45 dB. The LED panel indicator brightness will dim to 50%, providing less light for a better night's sleep. Plus, the temperature will increase by 1℃ after the first hour and then another 1℃ after the second hour, maintaining this level until the end. This intelligent temperature adjustment can help save up to 10% on your energy bill.
[Effortless Control] Our portable air conditioner features an easy-to-read LED display and includes a compact remote control (AAA batteries not included) to easily set the time, temperature, and mode. Its 1-24 hour adjustable timer allows you to set the ON/OFF schedule and let the AC work, no need to be at home.
[Easy to Move, Use & Maintain] This portable air conditioner features four easy-roll casters and two side handles for effortless room-to-room movement. The removable, washable, and reusable mesh ensures clean and healthy cooling air, protecting your family from dust and pet dander. Its memory function retains your previous mode and temperature settings, and it auto-restarts when power is restored, except in cases of manual power outages.

Air Conditioning Unit, 4-In-1 Powerful Portable Air Conditioner, Dehumidifier, Ventilation, Cooling Fan with Digital Display, 2 Fan Speeds, 24 Hour Timer & Window Venting Kit for Rooms Up to 259ft

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Why We Love It

Powerful cooling on-the-go.
Versatile climate control.
Convenient remote operation.

Main Highlights

❄️🏠【Portable Air Conditioning, Powerful Air Cooling】Benefiting from the advanced air compressor, the portable air conditioners have a cooling capacity of up to 7,000 BTU, instantly lowering room temperature for rooms up to 269 ft3. Adjust the room temperate to create coolness and comfort in your bedroom, living room, office, basement, or workplace.
❄️🏠【4-In-1 Multifunctional Air Conditioner Unit】To enhance your indoor air environment, we give two more roles to this air conditioner unit portable to play as a fan/dehumidifier. Drop the temperature to 16℃ when it gets hot, improve the indoor air circulation with two fan speeds, or dehumidify the indoor air to keep the humidity between 40% and 60%.
❄️🏠【Real-Time Display, Remote Control】Check the temperatures at a glance with a LED digital display showing the current temperature. A multi-function control panel and full-function remote control make your life more convenient; thus, you can easily set a timer, adjust the temperature value, and switch modes, whether getting close or far away.
❄️🏠【Compact Size, Hassle-Free Installation】The air conditioning unit Size: 315x310x698mm, Weight: 24 kg. Four casters at the bottom enable easy mobility, while the two side handles give you a grip on the device—a plug rest area on the back for easy storage and movement. Compatible with sliding window types. Adjust the window kit to fit different windows. Require no drilling.
❄️🏠【User-Friendly Considerate Design】A 24-hour timer of the ac unit portable allows you to set the auto on and off time. Prepare a cool room before you arrive home or help you save energy when it gets cool enough late at night. Have a nap during the daytime or sleep soundly at night under sleep mode when the LED light is dimmed, and noise is reduced.
❄️🏠【ACCESSORIES】- We have prepared :1 x Exhaust hose, 1 x Hose connector, 1 x Window kit adapter, 1 x Remote control, 1 x Window kit, 1 x Screw, 1 x Drain hose, 1 x User manual for you. these are the most equipment that you may need in air conditioner package.
❄️🏠【EXCELLENT AFTER-SALES SERVICE】- We provide 24×7 customer support to keep you away from after-sales worries. If you are not satisfied with KGOGO air conditioner or have any other questions, please feel free to contact us. Our after-sales service experts will reply to your information within 12 hours, We will do our best to solve your problems, and you can purchase and experience with confidence.

COMFEE’ 9000 BTU Portable Air Conditioner App Control with Dehumidifier & Fan mode, Remote Control & Window Installation Kit Included, 24-Hour Timer for Room Up to 355 sq.ft.

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Why We Love It

Powerful cooling for large spaces.
Convenient app control from anywhere.
Energy-efficient and eco-friendly design.

Main Highlights

[POWERFUL COOLING] This 9000 BTU air conditioner delivers fast, effective cooling for spaces up to 355 sq. ft. (33㎡) while providing fan and dehumidification functions, creating a comfortable environment for the living room, basement, or workplace.
[CONVENIENCE FOR USE] This smart air conditioner is WiFi-enabled and can be controlled from anywhere through the App for iOS and Android. Switch modes, set a schedule and more. Pair your AC unit with Alexa or Google Assistant devices for voice control options.
[ENERGY EFFICIENCY] ERP Energy Efficiency accredited and natural refrigerant R290, using this air conditioner dehumidifier with a Class A energy efficiency rating to reduce energy consumption and optimize energy usage.
[EASY INSTALLATION] Roll your AC unit to the preferred area, and attach the exhaust hose and adjustable window brackets. Includes a window kit, no extra tools are needed for assembly, and installation instructions are simple enough for anyone to follow.
[WASHABLE AIR FILTER] To provide clean, cool air, a removable and reusable air filter is designed to protect you from dust and pet hair. We recommend cleaning the filter every week of operation to extend the life and performance of this AC unit.

Air Conditioning Unit Portable Air Conditioner 9000 BTU 4-in-1 Dehumidifier, Cooling Fan with 2 Speeds, Digital Display & Remote Control, Window Kit, 24 Hour Timer for Room Up to 269sq.ft

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Why We Love It

Powerful cooling efficiency.
Multifunctional climate control.
Eco-friendly operation.

Main Highlights

☃️【9000BTU Cooling Up to 269ft】Tired of sweltering summer days? Why not dive into refreshing cool air wherever you go with our compact cooling marvel. Our air conditioner is crafted with a cutting-edge air compressor, making itself an exquisite and compact cooling tool. Stay cool and cozy with our 9000 BTU air conditioner, a preferred companion cooling the rooms up to 269ft instantly. Start your unforgettable cooling journey in bedroom, living room, office or garage from now on.
4️⃣【4-in-1 Multiple Functions】KGOGO air conditioner is designed specially to improve indoor air and offer year-round comfort. Beat the heat with our versatile air conditioner boasting four modes tailored for your comfort. From chilling in air conditioner mode to enjoying gentle breezes or strong cool winds in fan mode, and maintaining optimal humidity at 40%-60% RH with the dehumidifier mode ( This mode only works when the temperature is above 15℃ or the humidity is below 85% . ), and enjoying a deep ultra-quiet childlike sleep with light off and lower noise under our sleep mode, our air conditioner has you covered.
🌛【Guard Your Tranquil Slumber】Enjoy whisper-quiet serenity with our ultra-quiet air conditioner. Our air conditioner is equipped with a high-quality air compressor and multi-layer cottons, serving as indispensable noise-reducing parts. Drift off into a tranquil slumber under sleep mode with light off and lower noise. Immerse yourself in a childlike sleep under our sleep mode's gentle hum below 60 DB, ensuring a ultra-quiet undisturbed rest every time.
🆒【Smooth Move & Effortless Assembly】This air conditioner is designed with two built-in handles and four 360° casters for room-to-room mobility effortlessly in bedroom, office or in the cabin around your home. We offer window kits that are compatible with most sliding windows, catering you an effortless installment without drilling. And our unique plug design behind simplifies storage and transportation of the air conditioner.
❄️【User-Friendly Design】Take control of your comfort with our 24h timer and versatile control options. Set your ideal temperature and mode effortlessly with our intuitive control panel or remote control. Choose startup and shutoff time to submerge yourself in cool air once getting into the room, greatly saving the energy. It is recommended to activate the child lock to keep little ones and pets safe from harm when the air conditioner is in operation. And with a washable air filter that can be washable and reused, maintenance for our air conditioner is a breeze. We recommend cleaning the air filter twice a month to ensure peak performance and cooling efficiency.
🛂【All-round Worry-free Service】We provide customer support to keep you away from after-sales worries. If you are not satisfied with KGOGO air conditioner or have any other questions, please feel free to contact us. Our after-sales service experts will reply to your information within 24 hours to solve your problems. You can purchase and experience with confidence.

Meaco MeacoCool MC Series 7,000R Portable Air Conditioner - Powerful Portable Air Conditioner, Energy Efficient with Two Window Venting Kits included

10% Off

Why We Love It

Powerful 7000 BTU cooling.
Energy-efficient and quiet operation.
Convenient remote control included.

Main Highlights

EFFECTIVE COOLING FOR HOME OR OFFICE ROOMS - 7000 BTU capacity allowing for strong and practical cooling in living rooms, bedrooms and offices with a size of between 12² to 22m².
ENERGY EFFICIENT & EXTRA QUIET- The MeacoCool has been awarded a class A energy certificate, to help ensure that removing the hot,humid air from your room this summer will not cost the earth. In low fan speed the new and reduced sound pressure level of just 51.5dB(A) makes this an easy portable air conditioner to live with.
REMOTE CONTROL AND DIGITAL DISPLAY - Stay in charge with the easy-to-use display and remote control. Adjust temperature, engage sleep mode to ensure you get a restful nights sleep.
FREE FLEXIBLE WINDOW KIT & CASTORS INCLUDED: A standard rigid window kit suitable for sash windows is included along with a free flexible window kit that covers most window types worth £19.99 to vent the hot air. Castors are fitted making it easier to move from room-to-room.
QUALITY ASSURED - Comes with a two-year parts and labour warranty from Meaco, the UK's leading air cooling and dehumidifier manufacturer.

Rapid cooling for large spaces.
Versatile 4-in-1 functionality available.
Whisper-quiet operation for relaxation.

Main Highlights

❄️🏠 【Ultra-Efficient 7000 BTU Cooling】Engineered with a high-performance compressor, the EUHOMY 7000 BTU portable air conditioner delivers rapid cooling for spaces up to 300 sq.ft. Perfect for bedrooms, offices, or basements, this air conditioning unit maintains temperatures as low as 16°C, transforming hot zones into refreshing sanctuaries within minutes.
⚙️🔄 【4-in-1 Versatile Air-Conditioning Unit】Switch seamlessly between cooling, dehumidifying (40-60% humidity control), fan ventilation (2 speeds), and sleep modes. This multifunctional air conditioner portable unit adapts to your needs—combat summer heat, eliminate muggy air, or circulate freshness with energy-efficient Class A operation.
🔇🌙 【Smart Control & Whisper-Quiet Design】Adjust settings effortlessly via the intuitive LED display, control panel, or included remote. Activate the 24H timer to pre-cool rooms or save energy. Enjoy peaceful nights with sleep mode (<50dB noise) and a dimmed display, making this portable ac air conditioner ideal for light sleepers.
↔️🧳 【Compact & Mobility-Focused Build】Weighing only 18.5kg with 4 smooth-rolling casters and ergonomic handles, this air-conditioning unit portable glides effortlessly between rooms. No permanent installation needed—use the adjustable sliding window kit (included) for quick setup. Compact dimensions (29.5x28x68cm) maximize space efficiency.
🧰⚡ 【Complete Kit for Instant Comfort】Everything included: exhaust hose, drain hose, window adapter, remote, and manual. Designed for hassle-free operation, this portable air conditioner ensures year-round comfort while prioritizing energy savings. 24/7 customer support guarantees worry-free ownership—cool smarter, not harder!

8.7

Excellent

Save 15%

We scanned 1704 products

We reviewed these offers relevant to the Quiet Portable Air Conditioners within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Bosch Thermotechnik, Dreo, De'Longhi, EUHOMY, DR.PREPARE, KGOGO, COMFEE', Meaco, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Quiet Portable Air Conditioners in the market, we considered we took a deep dive into 8521 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Bosch Cool 5000 with Inverter Technology Portable AC - 3-in-1: Air Conditioner, Dehumidifier, Fan - 3.4 kW for Rooms of up to 46 m² - With Auto Mode, Silent Mode & Sleep Mode. We love many things about this product by Bosch Thermotechnik. What sets it apart from the competition is Energy-efficient and powerful cooling, Whisper-quiet operation at 44 dB, Easy control with pre-programmed modes.
The best value product for most shoppers and where user satisfaction is continuously the highest is Dreo Smart 3-in-1 Portable Air Conditioner, 12000 BTU Drainage-Free Cooling AC Unit, 46dB Silent Mobile Air Conditioners for Bedroom & Room, APP/Voice/Remote Control, 24h Timer with Fan & Dehumidifier by Dreo based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Quiet Portable Air Conditioners and the best cost-to-value ratio is EUHOMY 7000 BTU Portable Air Conditioner | 4-in-1 Air Conditioning Unit (200-300 sq.ft) | Cool/Dehumidify/Ventilate/Sleep | 2-Speed & Energy Efficiency Class A | 300 m³/h Quiet (<50dB) | 24H Timerat EUHOMY with a 15% discount.
Our list of the best Quiet Portable Air Conditioners is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Quiet Portable Air Conditioners in The UK

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We scanned 1704 products

We concluded that: