Portable Air Conditioner
A practical portable air conditioner (7000 BTU, 4-in-1) for proper, portable cooling around the home.
The Best Small & Compact Portable Air Conditioners (UK 2026)
Small and compact portable air conditioners suit bedrooms, home offices and smaller rooms where a big unit would be overkill. They're lighter to move and cheaper to run, though they cool a smaller area.
What to look for
- Lower BTU (around 5,000-7,000) suited to small rooms.
- A compact, light body that's easy to move.
- Castors for rolling between rooms.
- A window kit for the exhaust hose.
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 (12000 BTU) for proper, portable cooling around the home.
#4 
MOBIS PLUS 10 UK
A practical portable air conditioner (10000 BTU) for proper, portable cooling around the home.
#5 
ZAFRO Inverter Portable Air Conditioner
A practical portable air conditioner (14000 BTU, 42 dB) for proper, portable cooling around the home.
#6 
Portable Air Conditioner
A practical portable air conditioner (12000 BTU) for proper, portable cooling around the home.
#7 
Portable Air Conditioning Unit
A practical portable air conditioner (9000 BTU, 4-in-1) for proper, portable cooling around the home.
#8 
Portable Air Conditioner
A practical portable air conditioner (14000 BTU, 3-in-1) for proper, portable cooling around the home.
Frequently asked questions
Will a small portable air conditioner cool a big room?
No - if you undersize the BTU for the room, it will run constantly and never get the space comfortable. Small units are best matched to small rooms; for a large room, choose a higher-BTU model.
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..