# LG Dual Inverter Smart Window AC (LW1222IVSM) vs Windmill WhisperTech 12,000 BTU Window AC (12W2WI): specs and price compared

A sourced, side-by-side comparison of the LG Dual Inverter Smart Window AC (LW1222IVSM) (LG) and Windmill WhisperTech 12,000 BTU Window AC (12W2WI) (Windmill) among air conditioners. LG Dual Inverter Smart Window AC (LW1222IVSM) is the cheaper of the two at $549.

## Side by side

| Spec | LG Dual Inverter Smart Window AC (LW1222IVSM) | Windmill WhisperTech 12,000 BTU Window AC (12W2WI) |
| --- | --- | --- |
| US price | $549 | $549 |
| Brand | LG | Windmill |
| Released | 2023 | 2024 |
| Type | window | window |
| Btu | 12000 BTU | 12000 BTU |
| Coverage (sq ft) | 550 | 550 |
| Noise dba | 44 | 42 |
| Smart Wi-Fi | Yes | Yes |
| Energy star | Yes | Yes |
| Inverter | Yes | Yes |
| Ceer | 15 | 13.5 |

## Key differences

- Noise dba: LG Dual Inverter Smart Window AC (LW1222IVSM) 44 vs Windmill WhisperTech 12,000 BTU Window AC (12W2WI) 42
- Ceer: LG Dual Inverter Smart Window AC (LW1222IVSM) 15 vs Windmill WhisperTech 12,000 BTU Window AC (12W2WI) 13.5

## Sources

- LG Dual Inverter Smart Window AC (LW1222IVSM): https://www.lg.com/us/air-conditioners/lg-lw1222ivsm-window-air-conditioner (lg.com, verified 2026-06-28)
- Windmill WhisperTech 12,000 BTU Window AC (12W2WI): https://windmillair.com/pages/technical-specs (windmillair.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/air-conditioners/lg-lw1222ivsm-dual-inverter-vs-windmill-12w2wi-whispertech/
Cite: Per The Front Desk Review, LG Dual Inverter Smart Window AC (LW1222IVSM) ($549) vs Windmill WhisperTech 12,000 BTU Window AC (12W2WI) ($549) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/air-conditioners/lg-lw1222ivsm-dual-inverter-vs-windmill-12w2wi-whispertech/
License: CC BY 4.0.