Air conditioning, finally comparable

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The short answer, at today's prices

The top pick for each need among US models in stock, prices checked Nov 10, 2026. Tap a need for every option and why.

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Room size (assumed)269 sq ft ≈ 25 m²

Assuming a typical room. Drag to set yours and the fit updates.

Portable monobloc

A single self-contained box on castors that you wheel into any room and vent through a window with a flexible hose.

No install, plug and playNo permission needed
Read the full portable monobloc guide Every US portable air conditioner, side by side by size

Installing in United States

All rules
  • US: AIM Act refrigerant transition off R-410A to A2L (700 GWP cap)Refrigerant handlingGood to know

Showing 48 of 405 units sized for a typical 269 sq ft room

Prices last synced Nov 10, 2026. In-stock units are marked and show a live retailer price confirmed within the last 7 days; the rest show the listed reference price, not a live offer. compare.ac may earn a commission when you buy through a retailer link, at no cost to you; it never changes the order. As an Amazon Associate I earn from qualifying purchases.

LG 11,000 BTU Portable Air Conditioner

Best match for a typical 269 sq ft room

Fits a 269 sq ft room In stock

Best for renters and rooms where you cannot install a fixed unit.

$389at Abt ElectronicsSearch Amazon

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Price drops

Air conditioners now at the lowest price in our available history from the last 120 days, down from a price we recorded earlier.

MRCOOL DIY Easy Pro 5th Gen 9,000 BTU Ductless Mini Split Heat Pump14% off
Split In stockENERGY STAR
$1,188$1,388save $200

Lowest we have tracked at Sylvane since Jul 25, 2026

MRCOOL DIY 5th Gen 9,000 BTU Mini Split13% off
Split In stockENERGY STAR
$2,029$2,329save $300

Lowest we have tracked at Sylvane since Jul 25, 2026

Senville Aura 18,000 BTU Dual Zone Mini Split Heat Pump 9k+9k12% off
Multi-split In stockSEER2 25
$1,850$2,099.99save $249.99

Package: 16 ft line set

Lowest we have tracked at Sylvane since Jul 26, 2026

Check you are allowed to install it

A split is a structural change that needs a certified installer and usually permission. We track 81 rules across 16 regions, so you find out before the box arrives.

Check your region

Torn between two? See them head-to-head

The units people actually cross-shop, side by side with an honest verdict on which fits your room.

All comparisons

Find it by what you need

The comparisons and answers on compare.ac, from the same live prices as the tool.

Only real air conditioners

Every unit here removes heat with a refrigerant cycle. No tower fans, no evaporative coolers dressed up as AC.

One honest spec scale

Cooling, noise, energy rating and the room it covers, normalized so two units are actually comparable.

We never invent a number

A spec the manufacturer does not publish stays blank. Prices come live from the retailer, not a guess.

Not sure which to pick?

Let the advisor narrow it down

Tell us your room and your situation. We will suggest the right system type and cooling power, then point you straight at the matching units. No jargon, no upsell.

Cooling advisor

Answer four things, see what actually fits.

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