Portable Air Conditioner
A practical portable air conditioner (7000 BTU, 4-in-1) for proper, portable cooling around the home.
Do Portable Air Conditioners Actually Work? (Honest Answer)
Portable air conditioners are popular every UK heatwave, but people often ask whether they really work - especially compared with the cheaper air coolers they sit next to in the shop. Here's the honest answer.
Yes - they genuinely cool
Unlike a fan (which just moves air) or an evaporative air cooler (which only slightly cools through water evaporation), a portable air conditioner uses a refrigerant compressor - the same technology as a fridge or a fitted AC - to actually lower the room's temperature. Sized correctly, one will bring a hot room down to a comfortable temperature, which nothing else portable can really do.
The catch: the hose and window
Because they create cold air, portable ACs also create hot air, which must be vented outside through an exhaust hose to a window (a sealing kit is included). So you do need a window nearby, and the hose itself radiates a little heat. They also make some compressor noise and use more electricity than a fan. None of this stops them working - it's just the trade-off for real cooling in a unit you can wheel between rooms.
Who they suit
A portable air conditioner suits anyone who wants genuine cooling without installing a fixed system - renters, anyone who can't fit a wall unit, or those who only need cooling for a few weeks a year. If you just want to feel a breeze cheaply, a fan is fine; if you want the air actually colder, a portable AC is the practical choice.
Our top picks
#1
#2 
Dreo Smart 3-in-1 Portable Air Conditioner
A practical portable air conditioner (10000 BTU, 3-in-1) for proper, portable cooling around the home.
#3 
Portable Air Conditioner
A practical portable air conditioner (14000 BTU) for proper, portable cooling around the home.
#4 
Portable Air Conditioner
A practical portable air conditioner (12000 BTU) for proper, portable cooling around the home.
#5 
MOBIS PLUS 10 UK
A practical portable air conditioner (10000 BTU) for proper, portable cooling around the home.
#6 
ZAFRO Inverter Portable Air Conditioner
A practical portable air conditioner (14000 BTU, 42 dB) for proper, portable cooling around the home.
Frequently asked questions
Are portable air conditioners worth it?
If you want real cooling in a heatwave without fitting a permanent system, yes - they genuinely lower the temperature and you can move them between rooms. The trade-offs are the window hose, some noise and higher running cost than a fan.
Do portable air conditioners cool as well as fixed ones?
Not quite - a fitted split system is more powerful and efficient. But a correctly-sized portable unit cools a room very effectively, and it needs no installation and can be moved around, which suits many UK homes.
Bottom line
Our top pick is the Portable Air Conditioner (our score 9.6/10) - A practical portable air conditioner (7000 BTU, 4-in-1) for proper, portable cooling around the home..