The Midea Duo 12,000 BTU Inverter is the better air conditioner overall, rated 4.3 to 2.8. The Midea Duo 12,000 BTU Inverter leads on efficiency and inverter & app. The Amazon Basics 12,000 BTU Portable costs $98.80 less ($399.99 vs $498.79).
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 plain, well-supported 8,000 BTU SACC portable sold directly by Amazon, for people who don’t need app control.
Amazon $399.99Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every portable air conditioner; a clear win is highlighted. How we rank explains each one.
| Factor weight | Midea Duo 12,000 BTU Inverter | Amazon Basics 12,000 BTU Portable |
|---|---|---|
| Overall rating | 4.3/5 | 2.8/5 |
| Value 30% | 67 $49.88 per 1,000 BTU (SACC) | 67 $50 per 1,000 BTU (SACC) |
| Efficiency 30% | 97 CEER 14.7 | 13 CEER 7.2 |
| Quiet 15% | 89 42 dB on low (maker rating) | 50 noise not published (neutral score used) |
| Inverter & app 15% | 100 inverter compressor, Wi-Fi app | 0 fixed-speed compressor, no app |
| Warranty 10% | 25 2-year warranty | 50 warranty not published (neutral score used) |
| Midea Duo 12,000 BTU Inverter | Amazon Basics 12,000 BTU Portable | |
|---|---|---|
| Cooling | ||
| Type | Portable, dual hose | Portable, single hose |
| Certified capacity | 10,000 BTU | 8,000 BTU |
| ASHRAE rating (95 °F) | 12,000 BTU | 12,000 BTU |
| Room size (maker) | 450 sq ft | 550 sq ft |
| Inverter compressor | Yes | No |
| Heat | No | No |
| Noise | 42 dB | - |
| Efficiency and power | ||
| CEER | 14.7 Btu/Wh | 7.2 Btu/Wh |
| Certified by | DOE | DOE |
| ENERGY STAR | No | - |
| Voltage | 115 V | - |
| Refrigerant | R-32 | - |
| Controls and fit | ||
| Wi-Fi app | Yes | - |
| Voice assistants | Alexa, Google Assistant | - |
| Remote | Yes | Yes |
| Window width | 19.1 to 63.8 in wide | - |
| Drain | drain hose for dry mode; bottom tray with full alarm | - |
| Dimensions | 32.48 x 19.53 x 16.73 in | - |
| Weight | 72.8 lb | 68.8 lb |
| Warranty | 2 years | - |
