The Midea Duo 12,000 BTU Inverter rates 4.3 among portable air conditioners; the LG Dual Inverter 12,000 BTU rates 3.8 among window ones. The Midea Duo 12,000 BTU Inverter costs $60.21 less ($498.79 vs $559).
The portable to get if you need real cooling from a unit that sits on the floor: the dual-hose duct and inverter compressor make it far more efficient than ordinary portables.
Amazon $579 Midea $498.79A strong choice for a big living room or open-plan space. It’s efficient and quiet for its size if you can handle the 85 lb install.
Amazon $559Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
These two sit in different type classes (portable and window), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Midea Duo 12,000 BTU Inverter | LG Dual Inverter 12,000 BTU |
|---|---|---|
| Overall rating | 4.3/5 | 3.8/5 |
| Value 30% | 67 $49.88 per 1,000 BTU (SACC) | 61 $46.58 per 1,000 BTU (certified) |
| Efficiency 30% | 97 CEER 14.7 | 73 CEER 15 |
| Quiet 15% | 89 42 dB on low (maker rating) | 78 44 dB on low (maker rating) |
| Inverter & app 15% | 100 inverter compressor, Wi-Fi app | 100 inverter compressor, Wi-Fi app |
| Warranty 10% | 25 2-year warranty | 0 1-year warranty |
| Midea Duo 12,000 BTU Inverter | LG Dual Inverter 12,000 BTU | |
|---|---|---|
| Cooling | ||
| Type | Portable, dual hose | Window |
| Certified capacity | 10,000 BTU | 12,000 BTU |
| ASHRAE rating (95 °F) | 12,000 BTU | - |
| Room size (maker) | 450 sq ft | 550 sq ft |
| Inverter compressor | Yes | Yes |
| Heat | No | No |
| Dehumidifying | - | 86.4 pints/day |
| Noise | 42 dB | 44 to 58 dB |
| Efficiency and power | ||
| CEER | 14.7 Btu/Wh | 15 Btu/Wh |
| Certified by | DOE | ENERGY STAR |
| ENERGY STAR | No | Yes |
| Power | - | 1,020 W |
| Voltage | 115 V | 115 V |
| Current | - | 9.1 A |
| Refrigerant | R-32 | R-32 |
| Controls and fit | ||
| Wi-Fi app | Yes | Yes |
| Voice assistants | Alexa, Google Assistant | Alexa, Google Assistant |
| Remote | Yes | Yes |
| Window width | 19.1 to 63.8 in wide | 27 to 39 in wide |
| Drain | drain hose for dry mode; bottom tray with full alarm | - |
| Dimensions | 32.48 x 19.53 x 16.73 in | 14.9 x 23.6 x 28.8 in |
| Weight | 72.8 lb | 85 lb |
| Warranty | 2 years | 1 years |
