Best Portable Air Conditioners Under £300 UK (2026)
- mallsop0810
- 1 hour ago
- 3 min read
When the UK gets hit with a hot spell, a good portable air conditioner can make a huge difference to your bedroom, home office or living room. Unlike a standard fan, a proper portable AC actively cools the air and can also help reduce humidity.
The good news is that you don't necessarily need to spend £400–£700 to get effective cooling. There are several portable air conditioners available around or below the £300 mark, although prices and availability can change during periods of high demand.
We've put together five options worth considering if you're shopping on a budget.
🥇1. SereneLife Quiet 9000 BTU Portable Air Conditioner

Best for: Bedrooms, home offices and living rooms up to 31 m²
Our rating: ⭐⭐⭐⭐½
The SereneLife Quiet 9000 BTU Portable Air Conditioner is a great all-round option for cooling your home without spending a fortune. With enough power for rooms up to around 31 m², it's well suited to bedrooms, living rooms and home offices.
It features 3-in-1 cooling, fan and dehumidifier modes, with a remote control and window kit included. Its portable design also makes it easy to move between rooms when needed.
Our verdict: A versatile and affordable portable AC that offers plenty of useful features, making it a strong choice for keeping your home comfortable during hot UK weather.
🥈2. 14000 BTU Portable Air Conditioner

Best for: Large bedrooms, living rooms and home offices up to 700 sq. ft.
Our rating: ⭐⭐⭐⭐½
This 14,000 BTU Portable Air Conditioner is a powerful option for larger rooms, with
cooling capacity designed for spaces up to around 700 sq. ft. It combines cooling, fan and dehumidifier modes in one convenient unit.
It also features a remote control, smart sleep mode and 24-hour timer, making it easy to control throughout the day and night. The included window kit makes installation easier, while its portable design allows you to move it between rooms.
Our verdict: A powerful choice for larger rooms, offering plenty of cooling power and useful features without needing a permanent air-conditioning installation.
🥉3. Portable Air Conditioner Fan – Mini Evaporative Air Cooler

Best for: Bedrooms, desks, home offices and camping
Our rating: ⭐⭐⭐⭐
This mini evaporative air cooler is a compact and affordable option for personal cooling. It features 5 spray nozzles, 3 wind speeds and a 600ml water tank, helping create a refreshing mist around your immediate area.
It also includes 3 timer settings and 7-colour LED lighting, while its compact USB-powered design makes it easy to use at a desk, bedside or when camping. At under 35dB, it's designed to operate quietly.
Our verdict: A handy budget option for personal cooling, especially at a desk or beside your bed. Just remember that it's an evaporative personal cooler rather than a full room air conditioner, so it's best suited to cooling the area around you rather than an entire room.
4. AuraHome Portable Air Conditioner 9000 BTU 4-in-1

Best for: Bedrooms, home offices and smaller living rooms up to 215 sq. ft.
Our rating: ⭐⭐⭐⭐
The AuraHome 9000 BTU Portable Air Conditioner is a versatile option with 4-in-1 cooling, dehumidifying, fan and sleep modes. It also includes 2 fan speeds, a digital display, remote control and a 24-hour timer.
Its compact design, wheels and included window vent kit make it easy to move and set up when needed. It also uses R290 refrigerant and includes a child-lock function for added convenience.
Our verdict: A well-equipped portable AC with plenty of useful features, making it a solid choice for smaller rooms during hot UK weather.
5. Ariston MOBIS 8 UK Portable Air Conditioner
Best for: Bedrooms and smaller rooms up to around 11–16 m²

Our rating: ⭐⭐⭐⭐
The Ariston MOBIS 8 UK is a compact 8,000 BTU portable air conditioner designed specifically for the UK market. It has an A energy rating and an EER of 2.6, making it an efficient option for cooling smaller rooms.
It includes a remote control for easy temperature adjustment and has a compact portable design. Ariston states that it's designed for rooms around 11–16 m², making it a good choice for bedrooms and smaller home offices.
Our verdict: A solid choice for smaller rooms if energy efficiency is important to you. Its main drawback is that customer opinions on noise levels are mixed, despite the manufacturer's low-noise claims.



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