10 best 9000 BTU portable air conditioners in 2026 (58+ compared)

The best De'Longhi 9,000 BTU portable air conditioner is De'Longhi Pinguino PACEM77 Silent, with an overall score of 6.87 points, a recommended room size of up to 25 m², and a price of around £400.

The De'Longhi Pinguino PACEM77 Silent is a 3-in-1 portable air conditioner featuring a 9,000 BTU (2.1 kW) cooling capacity, an 800 W input power, and Class A energy efficiency (2.6 EER) optimized for rooms up to 70 m³. Its main characteristics include an eco-friendly R290 refrigerant gas, a soft-touch button interface, a 24-hour electronic timer, a 3-speed fan (340–400 m³/h airflow), and a robust dehumidifier capable of removing up to 40 liters of moisture per 24 hours.

Runner-up: De'Longhi Pinguino PAC EM77, with an overall score of 6.75 points, a recommended room size of up to 28 m², and a price of around £530.

Explore our dedicated best De'Longhi portable air conditioners guide for full model rankings.

Leading the Haverland 9,000 BTU lineup is HAVERLAND IGLU-9, delivering an overall score of 6.37 points, a recommended room size of up to 26 m², and retailing for around £300.

The Haverland IGLU-9 is a compact 3-in-1 portable air conditioner, fan, and dehumidifier designed for rooms up to 18–22 m², delivering a 9,000 BTU/h (2,600 W) cooling capacity, a 320 m³/h airflow, and a 1.2 L/h dehumidifying rate while maintaining a low power consumption of 1,000 W. Key advantages include its eco-friendly R290 refrigerant, low-energy Class A efficiency rating, integrated transport wheels, 24-hour programmable timer, remote control, and included sliding window installation kit.

Runner-up: HAVERLAND TAC-0919, with an overall score of 6.4 points, a recommended room size of up to 18 m², and a price of around £300.

Ranking first among Klarstein 9,000 BTU models is Klarstein Metrobreeze New York, with an overall score of 7.59 points, a recommended room size of up to 59 m², and available for around £430.

The Klarstein Metrobreeze New York is a mobile 3-in-1 appliance offering air conditioning, fan circulation, and dehumidification modes. Available in capacities ranging from 7,000 BTU (2.1 kW) to 12,000 BTU (3.5 kW) with an Energy Efficiency Class A rating, it features a temperature setting range of 16°C to 30°C, three fan speeds, an integrated 24-hour programmable timer, and uses an eco-friendly R290 refrigerant.

Runner-up: Klarstein Metrobreeze 9 Paris, with an overall score of 7.16 points, a recommended room size of up to 44 m², and a price of around £440.

The best Olimpia Splendid 9,000 BTU portable air conditioner is Olimpia Splendid 01914 Dolceclima Compact 9 P, with an overall score of 6.87 points, a recommended room size of up to 30 m², and a price of around £280.

The Olimpia Splendid 01914 Dolceclima Compact 9 P is a space-saving portable air conditioner with a cooling capacity of 9,000 BTU/h (2.34 kW) and an Class A energy efficiency rating (EER 2.6). It stands out for its ultra-compact design, measuring just 70.3 cm high by 34.5 cm wide, and utilizes eco-friendly R290 refrigerant alongside a maximum dehumidification capacity of 2.14 liters per hour.

Runner-up: Olimpia Splendid 02571 Dolceclima Compact 9 SS UK, with an overall score of 6.53 points, a recommended room size of up to 30 m², and a price of around £260.

Leading the Suntec 9,000 BTU lineup is Suntec 15144 Advance 9.0 Eco, delivering an overall score of 6.89 points, a recommended room size of up to 34 m², and retailing for around £880.

The Suntec 15144 Advance 9.0 Eco is a 3-in-1 portable air conditioner featuring cooling, dehumidification (0.7 l/h), and ventilation functions with an airflow rate of up to 380 m³/h. It operates with an energy efficiency class A rating, utilizes eco-friendly R290 refrigerant, and provides a cooling capacity of 9,000 BTU/h (2.4 kW), making it suitable for rooms up to 34 m² or 80 m³.

Runner-up: Suntec 17032, with an overall score of 6.97 points, a recommended room size of up to 34 m², and a price of around £140.

Our top-rated Black+Decker 9,000 BTU portable air conditioner is BLACK+DECKER BXAC40025GB, achieving an overall score of 7.06 points, a recommended room size of up to 37 m², and priced around £330.

The BLACK+DECKER BXAC40025GB is a versatile 3-in-1 mobile air conditioner, fan, and dehumidifier designed for rooms up to 37 square meters, featuring a 9,000 BTU (2.6 kW) cooling capacity, two speed settings, and an airflow rate of up to 347 m³/h. Its standout pros include a highly efficient Class A energy rating, built-in Wi-Fi compatibility for smart remote control via the BLACK+DECKER Home App (as well as Alexa and Google Assistant), a programmable 24-hour timer, an adjustable thermostat ranging from 16 to 32°C, and a high-performance dehumidifying system capable of extracting up to 21 liters of moisture per day.

Runner-up: BLACK+DECKER BXAC40006GB, with an overall score of 6.01 points, a recommended room size of up to 18 m², and a price of around £360.

Ranking first among Kesser 9,000 BTU models is Kesser 9000 BTU, with an overall score of 6.46 points, a recommended room size of up to 30 m², and available for around £620.

The Kesser 9000 BTU portable air conditioner is a versatile 4-in-1 climate control unit that offers cooling, dehumidification (1 L/h), ventilation, and a specialized night/sleep mode. It features a cooling capacity of 2.6 kW with a power consumption of 950W to 1005W, efficiently covering room sizes between 10 to 20 square meters utilizing ecological R290 refrigerant.

Runner-up: Kesser 14172-21935-1, with an overall score of 6 points, a recommended room size of up to 30 m², and a price of around £160.

Our top-rated Maxesla 9,000 BTU portable air conditioner is Maxesla MAX114132, achieving an overall score of 7.05 points, a recommended room size of up to 20 m², and priced around £260.

The Maxesla portable air conditioner is a versatile 4-in-1 climate control unit featuring a 9000 BTU cooling capacity, an integrated dehumidifier, a multi-speed fan, and a dedicated sleep mode designed for rooms up to 215 square feet. Operating on eco-friendly R290 refrigerant with an energy-efficient Class A rating, the system includes a 24-hour programmable timer, digital touch controls, a remote control, a child lock, and a washable air filter.

Best value alternative: Maxesla SKY-1B-FR, with an overall score of 6.95 points, a recommended room size of up to 20 m², and a price of around £220.