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Review · Portable air conditionersResearched

Pro Breeze 4-in-1 12000 BTU review

Pro Breeze 4-in-1 12000 BTU Portable Air Conditioner

By Tom Calder

Our verdict · Researched
3.9 / 5

A 12,000 BTU unit whose label agrees with the box: 3.5kW of cooling, plus 3.3kW of heating from a heat pump, so it earns its space beyond a heatwave. App and voice control and two window kits come with it. The 54dB on the box is a sound-pressure figure; its label sound power is 65dB(A), typical for a single-hose unit, so it's better suited to a living room than a light sleeper's bedroom. It was sold out at Pro Breeze and on Amazon in October 2026.

Best for
A large room, cooled in summer and heated in winter
Skip it if
You only need to cool a small bedroom
Current price
£659.99
Last checked 4 November 2026
Check stock
Check stock at Pro Breeze →Out of stock when we checked: see 3 alternatives ↓

We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →

Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.

What we like

  • Label agrees: 3.5kW for 12,000 BTU
  • Heat pump: 3.3kW heating
  • App, voice control, two window kits

Worth knowing

  • 65dB(A) label noise
  • 29.5kg: heavy to move
  • Sold out in October

Out of stock when we checked: our alternatives

Closest in size first, then by our score. None of them was showing out of stock when we last checked.

Midea PortaSplit 12000 BTU Portable Split Air Conditioner
Midea PortaSplit 12000 BTU Portable Split Air Conditioner
4.3

Best for The quietest, cheapest-to-run option, if you can fit it

in stock when checked
as of 4 Nov 2026, 19:07 GMT · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Read the review →
Dreo AC516S Smart 3-in-1 Portable Air Conditioner
Dreo AC516S Smart 3-in-1 Portable Air Conditioner
4.0

Best for The most cooling of any single-hose unit here

in stock when checked
as of 4 Nov 2026, 19:07 GMT · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Read the review →
Pro Breeze 9000 BTU 3-in-1 Smart Portable Air Conditioner (PB-AC01)
Pro Breeze 9000 BTU 3-in-1 Smart Portable Air Conditioner (PB-AC01)
3.9

Best for A budget bedroom unit you can pre-order for next summer

ships later
as of 4 Nov 2026, 19:07 GMT · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Read the review →
See every portable air conditioners pick compared →

ⓘ As an Amazon Associate, PreparedBritain earns from qualifying purchases. We may earn a commission when you buy, or a fee when you request a quote, through our links. When two products are close, commission can decide which one we pick. A clearly better product always wins. Amazon prices come from Amazon's own product data and show the date and time they were retrieved. Prices at other retailers are checked by us, less often. Prices and stock can change at any time, so always check the retailer's price before you buy.

Who shouldn't buy this

Don't buy it if you only need to cool a small bedroom: Pro Breeze's 9,000 BTU smart unit costs about half as much.

Key specs

Box rating12,000 BTU
Rated cooling3.5 kW
Room size (maker)30 m²
TypeSingle-hose, 4-in-1 heat pump, Wi-Fi
Label noise65 dB(A)
HeatingHeat pump
How this review works

This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.

How we review →Full methodology →

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