Pro Breeze 4-in-1 12000 BTU Portable Air Conditioner review
Medium-to-large rooms (up to ~30 m²) where you want cooling in summer plus heating and dehumidifying the rest of the year from one unit.
By Tom Rowland · Updated 20 July 2026 · Price checked against our tracker
A capable, genuinely four-season unit that cools a large room quickly and adds heating and dehumidifying, so it earns its keep beyond the odd heatwave. It is on the pricey and noisy side, so weigh it up against a simpler 9,000 BTU model if you only need summer cooling.
Approximate typical UK street price as of Jul 2026, triangulated across Amazon UK, B&Q and Pro Breeze direct. Manufacturer RRP is £669.99 but the unit routinely sells well below that (roughly £350-450) when in stock; several retailers were showing it sold out, so price is a sensible mid-point rather than a precise figure.
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- Strong, fast cooling for its size, comfortably handling medium-to-large bedrooms and living rooms
- A true 4-in-1: the heating and dehumidifier modes extend its use across the whole year, not just summer
- Class A energy rating and eco-friendlier R290 refrigerant, with app and voice control via WiFi
- Noisy at higher fan speeds (rated 54 dB but independently measured into the high 50s and low 60s), so light sleepers may struggle overnight
- Heavy and awkward to move between floors, and full RRP is steep for a portable unit
Key specs
| Cooling power | 12,000 BTU |
| Room size | 30 m² |
| Type | Portable air conditioner (4-in-1: cool/heat/dehumidify/fan) |
| Noise | 54 dB |
| Heating mode | Yes |
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