Looking for the best air conditioner to buy in the UK in 2025? Whether you’re facing a sweltering flat, a stuffy bedroom, or a warm home office, choosing the right air conditioner can make all the difference. In this guide, we review the top-rated portable air conditioners available in the UK to help you stay cool and comfortable this summer.

Best Portable Air Conditioners UK 2025

1. MeacoCool 7000BTU Portable Air Conditioner

• Best for: Rooms 12–22m²
• Features: Wi-Fi control, 24-hour timer, sleep mode
• Noise Level: 53–65 dB
• Price: Approx. £287.85
• Pros: Energy efficient, quiet, 3-year warranty
• Cons: Not ideal for large rooms

2. De’Longhi Pinguino PAC N90 Eco Silent

• Best for: Medium to large spaces
• Features: Air conditioning, fan, dehumidifier
• Noise Level: Up to 64 dB
• Price: Approx. £419.99
• Pros: Quiet operation, solid build
• Cons: Heavy and large

3. AEG Comfort 6000 Portable Air Conditioner

• Best for: Larger rooms
• Features: Fast cooling, Wi-Fi app control, dehumidifier
• Noise Level: 64 dB
• Price: Approx. £679.99
• Pros: Powerful and smart
• Cons: Pricey

4. Honeywell 9000 BTU 3-in-1 Smart Portable Air Conditioner

• Best for: Medium rooms
• Features: Smart control, fan, dehumidifier
• Noise Level: 65 dB
• Price: Approx. £289.99
• Pros: Sleek and smart
• Cons: Smart setup can be fiddly

5. Challenge 7K BTU Portable Air Conditioner (Argos Exclusive)

• Best for: Rooms 9–14m²
• Features: Compact, mobile, simple controls
• Noise Level: 62 dB
• Price: Approx. £175 (sale price)
• Pros: Affordable, great for bedrooms
• Cons: Basic features only

How to Choose the Right Air Conditioner in the UK

• Room size: Check the BTU rating – 7000 to 9000 BTU is typical for small-to-medium rooms.
• Energy efficiency: Look for models with A or A+ ratings.
• Noise level: Aim for below 60 dB if using in a bedroom.
• Installation: Portable units are easiest to set up – ideal for renters.
• Smart features: Wi-Fi and app control add convenience but usually cost more.