10 Best Quiet Portable Air Conditioners in The UK

Last updated on 20/06/2025

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Midea Duo 14,000 BTU (12,000 BTU SACC) High Efficiency Inverter, Ultra Quiet Portable Air Conditioner, Cools up to 550 Sq. Ft., Works with Alexa/Google Assistant, Includes Remote Control & Window Kit

Why We Love It

Innovative dual hose design.
Saves over 40% energy.
Ultra-quiet 42dB operation.

Main Highlights

INNOVATIVE DUO HOSE DESIGN - Midea's industry-first dual hose-in-hose design enables the unit to intake and exhaust air outdoors. The dual hose-in-hose design forms balanced air circulation indoors and prevents hot outside air from seeping in through gaps.Control Type : Electronic. Plug Type : 5-15P.
INVERTER TECHNOLOGY - Engineered with the variable-speed inverter technology, Midea Duo Inverter portable AC cools more with considerably less electricity than traditional portable units. It saves more than 40% energy compared to U.S. federal standard
MORE THAN 2X FASTER AND STRONGER COOLING - Empowerd by the Duo hose design and an optimized air duct system, Midea Duo can lock and maximize cooling indoors. Now you can enjoy a 2X faster and stronger whole-room cooling experience like never before
SMART CONTROL - This unit comes Wi-Fi enabled with app connectivity and voice control options. Control from anywhere with the MSmartHome App for iOS and Android or by voice with Alexa and Google Assistant devices
42dB ULTRA-QUIET OPERATION - The sound level of the Midea Duo is as low as 42dB, almost as quiet as a library! Install in the bedroom or living room and enjoy sleep, a good book, or your favorite show without the disturbing noise of a traditional AC

Dreo Smart 3-in-1 Portable Air Conditioner, 12000 BTU Drainage-Free Cooling AC Unit, 46dB Silent Mobile Air Conditioner for Bedroom, APP/Voice/Remote Control, 24h Timer with Fan & Dehumidifier, AC516S

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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

Prem-I-Air 15000 BTU Inverter (Energy Saving Design) Mobile Portable Split Air Condoner with Remote Control, Timer, Dehumidifier and Fan. Quiet Operation for Use in Homes and Offices

Why We Love It

Impressive 15000 BTU cooling capacity.
Energy-saving inverter design.
Quiet, distraction-free operation.

Main Highlights

KEEP COOL WITH AN IMPRESSIVE 15000 BTU COOLING CAPCITY : Gives out a massive 15000 BTU of cooling to make those long hot days and nights a little more bearable.
INVERTER DESIGN AIR CONDITIONER: Can save between 30 and 50% of the energy used by conventional air conditioning units.
QUIET DESIGN: The split unit allows the condenser unit to be situated out of the cooling zone reducing the annoying noise associated with mobile air-conditioning allowing you to concentrate or get a good nights sleep.
DUAL CONTROLLED WITH TIMER FUNCTION: Can be fully controllable using the panel on the product or via the remote control.

Air Conditioning Unit 9000 BTU, LEENON Portable Air Conditioners, 4-in-1 Cooling Dehumidifier Fan & Sleep Mode, 2-Speeds Air Conditioners for Home, Remote Control, 24H Timer, Window Kit Included

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Why We Love It

Powerful 9000BTU cooling capacity.
Versatile 3-in-1 functionality available.
Easy installation without extra tools.

Main Highlights

9000 BTU Powerful Cooling: LEENON air conditioning unit provides 9000BTU cooling power by equipped with powerful and advanced refrigeration compressor technology, quickly cooling spaces up to 370 sq.ft, perfect for home, kitchen, basement, small storage or other small-to-medium spaces, our air conditioner ensure that your room stays down to 17 °C on the hot days on the hot days.
4-in-1 Cooling/Dehumidifier/Fan/ Slep Mode: LEENON portable air conditioner featurs cooling, fan, and dehumidifier modes in one all；Continuous dehumidifier mode makes your room dry and comfortable by emoveing excess moisture from the air; 2-speed fan mode creates a circulation of fresh air throughout your room. An energy-saving sleep mode that auto goes at a lower fan to conserve energy and keep you comfortable at night.
Simple Operation with Remote Contro: LEENON portable air conditioning unit offers a multifunctional control panel or remote control for effortless operation. Easily adjust cooling modes, temperatures (17 to 30 °C ), fan speeds etc.(Humidity is Cannot be adjusted in continuous dehumidification mode).With the LED display, you can easily track real-time temperature changes, and the child lock ensures no accidental presses
[Hassle-Free Installation & Movability] LEENON 9000 BTU air conditioner portable is designed for portability, 4Pcs roll casters wheels and side handles allows you easily move airconditioner between rooms. The air filter is easily removable for easy cleaning. Window panel kit and large exhaust hose are included, hassle-free to install, air conditioning fits most sliding windows and single/double hung windows.(Not: As dehumidifier,connect drain hose on upper outlet to continuously drain water)
24H Timer & A-Rated Energy: Our airconditioning portable unit have a 24-hour timer function, which allows you to freely set the cooling time to help keep your room cool and avoid wasting energy. In addition, this air conditioner A-rated for energy efficiency and uses eco-friendly R290 refrigerant for a greener cooling solution. Please regularly clean the air filter.
Reliable Customer Service: LEENON Offers satisfied customer service.If you have any problem with air conditioner unit or are not completely satisfied, please contact us directly, and we will respond within 12 hours.

Air Conditioning Unit,9000 BTU Portable Air Conditioner,4-In-1 Powerful Mobile Conditioners,Dehumidifier,Ventilation,Cooling Fan with Remote Control,24H Timer & Window Kit for Rooms Up to 269sq.ft

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Why We Love It

Powerful cooling for any space.
Convenient remote control functionality.
Compact design for easy mobility.

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 9,000 BTU, lowering room temperature for rooms up to 269sq.ft. 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】Size: 38x38x87cm, Weight: 25 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. We will do our best to solve your problems, and you can purchase and experience with confidence.

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㎡)

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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.

Pro Breeze 4-in-1 Portable Air Conditioner 9000 BTU – Smart Home WiFi Compatible - 24 Hour Timer & Window Venting Kit Included. Powerful Air Conditioning Unit with Class A Energy Efficiency Rating

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Why We Love It

Powerful cooling capacity.
Smart home integration.
Energy-saving design.

Main Highlights

POWERFUL COOLING This portable air conditioner features 9000 BTU of cooling capacity, allowing for strong and effective cooling down to 16°C in medium to large homes, living rooms, bedrooms and offices
SMART HOME TECHNOLOGY WITH WI-FI: Connect your smartphone to the AC unit and control the air conditioners temperature, 24 hour timer and various air con functions through the app or voice command. Compatible with Amazon Alexa and Google Home for iPhone and Android.
4-IN-1 FEATURES WITH DIGITAL DISPLAY: This portable air conditioning unit features 4 multi-purpose operating modes including air cooling, dehumidifying, fan only and sleep modes all of which can be controlled via the air conditioner smart app, digital display or remote control.
ENERGY EFFICIENT AIR CONDITIONER: This A/C unit boasts a Class A Energy Efficiency rating to ensure that keeping cool in the sweltering summer heat is cost effective. It also utilises an R290 refrigerant, up to 690 times more eco-friendly than traditional air conditioning gasses.
WINDOW KITS INCLUDED: We have included two easy-to-install air conditioner window venting kits with our AC unit to fit either slide or hinged windows using the step by step instructions provided. Its space-saving design also ensures minimal intrusion.
PRO BREEZE – THE AIR COOLING EXPERTS: Explore the Pro Breeze cooling range which includes powerful 7000, 9000 and 12000BTU Air Conditioners, 5L and 10L Evaporative Coolers along with a vast range of innovative Tower and Pedestal Fans. Fancy a refreshingly cold drink? Search for the Pro Breeze Ice Maker!

Air Conditioning Unit, 7000BTU Air Conditioner with 2 Control Ways, Digital Display, Installation Kit, Low Energy, 1-24 H Timer, 4 IN 1 Ventilation Conditioning Cooling Modes for Room up to 25m²

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Why We Love It

Versatile four modes to choose.
Compact design fits any space.
Convenient remote control operation.

Main Highlights

4 Modes Selection: Cooling mode cools your large room in hot weather conditions; Fan mode provides powerful airflow; Dehumidification mode dehumidifies the air and keeps the room humidity around 50%. Silent mode operates quietly with effective cooling.
Compact & Portable with Night Sleep Mode: This air conditioner is compact in size and does not take up space. It is usually suitable for placing in every corner of the living room, room, and kitchen. In the night sleep mode, the fan speed will change to low speed, which cools down quietly and effectively, allowing you to have a good sleep.
4 In 1 Portable Air Conditioner: Cooling/ventilation/dehumidifier - the four-in-one air conditioning unit can accelerate indoor air circulation in the shortest time, reduce the temperature of the surrounding environment, let you feel cool instantly, and relieve the stuffiness in the air.
Easy Installation & Dual Window Kit: The configured ventilation kit and window seal are very simple and easy to understand. Even beginners can quickly master the installation method. Its size is suitable for most types of windows and meets the cooling needs of most families.
LED Display & Remote Control: The LED digital display of the portable air conditioner shows the current temperature, allowing you to easily understand the indoor temperature. The choice of remote control and touch control makes your life more convenient. Whether it is set at a close distance or a long distance, you can feel the comfort and coolness brought by the air conditioner.

VonHaus Air Conditioning Unit 9000 BTU – Portable Air Conditioner, Dehumidifier Mode, Air Con, Window Venting Kit, Remote Control, 4 Modes, 2 Speeds, 24hr Timer, LED Display, x4 Wheels, Carry Handles

Why We Love It

Versatile 4-in-1 functionality.
Whisper-quiet sleep mode.
Highly portable and efficient.

Main Highlights

4-IN-1 AIRCON UNIT: Create a comfortable home with the VonHaus 9000BTU air conditioner, featuring cooling, dehumidifier, fan-only, and sleep settings. Sleep mode features a low 52dB noise level and dimmed display.
EASY TO USE: Finding your perfect temperature is a breeze with this AC unit. Set the mode, speed, temperature (16-32°C), and 24-hour timer using the remote control or LED display.
PORTABLE AIR CONDITIONER: Move the air cooler around using the four castor wheels. Complete with a dual window venting kit for sliding and hinged windows, cool down any room up to 18m².
ENERGY EFFICIENT: With a Class A energy efficiency rating and eco-friendly, non-toxic R290 refrigerant, this air conditioner unit keeps you cool for less. Adjust the louvres to streamline the airflow for max efficiency.
OUR BRAND PROMISE: Established in 2009, VonHaus is the helping hand you need to stay comfortable all year round. Designed using innovative technology, keep cool this summer with our air conditioning unit.

Pro Breeze 4-in-1 Powerful Portable Air Conditioner 12,000 BTU - Smart Home WiFi Compatible - App & Voice Control - Heater & Dehumidifier mode, 24hr Timer & Window Venting Kit - Class A Energy Rating

Why We Love It

Powerful cooling capacity.
Smart home integration.
Year-round climate control.

Main Highlights

OUR MOST POWERFUL AIR CONDITIONER: This powerful Pro Breeze portable AC Unit features a market leading 12,000 BTU of cooling capacity providing effective cooling down to 16°C in large and extra-large spaces. This mobile aircon is perfect for your home, office, shop, or gym.
SMART HOME TECHNOLOGY WITH WIFI: In addition to the remote control, you can connect your smartphone to the AC unit and control the temperature, timer, and various functions through the free Pro Breeze app or voice command. Compatible with Amazon Alexa app and Google Home for iPhone and Android.
AIR COOLING, HEATING AND DEHUMIDIFYING: Features four versatile operating modes, including heating, dehumidifying, fan-only and air cooling mode, making this aircon unit it a valuable appliance all year round.
ENERGY EFFICIENT: Class A energy efficiency rating, this air con unit utilises R290 refrigerant, which is not only cost-effective but also 690 times more eco-friendly than traditional air conditioning gasses.
WINDOW KITS INCLUDED: This portable Air Conditioner comes with an easy-to-install window kit to fit slide and hinged windows. It's four wheels and space-saving design makes it mobile and unobtrusive, ideal for your living room and bedroom.
PRO BREEZE – THE AIR COOLING EXPERTS: Explore the Pro Breeze cooling range which includes powerful 7000, 9000 and 12000BTU Air Conditioners, 5L and 10L Evaporative Coolers along with a vast range of innovative Tower and Pedestal Fans. Fancy a refreshingly cold drink? Search for the Pro Breeze Ice Maker!

8.7

Excellent

We scanned 1726 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 Midea, Dreo, Prem-i-air, LEENON, KGOGO, EUHOMY, Pro Breeze, NELGOLLE, VonHaus, 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 8631 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 Midea Duo 14,000 BTU (12,000 BTU SACC) High Efficiency Inverter, Ultra Quiet Portable Air Conditioner, Cools up to 550 Sq. Ft., Works with Alexa/Google Assistant, Includes Remote Control & Window Kit. We love many things about this product by Midea. What sets it apart from the competition is Innovative dual hose design, Saves over 40% energy, Ultra-quiet 42dB operation.
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 Conditioner for Bedroom, APP/Voice/Remote Control, 24h Timer with Fan & Dehumidifier, AC516S 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 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㎡)at 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 1726 products

We concluded that: