The best window air conditioner in 2025 is widely considered to be the Midea U-Shaped MAW08V1QWT. It stands out for its unique U-shaped design that allows you to open your window while the unit is installed, and it is the quietest and most energy-efficient window AC tested by multiple reviewers. It is praised for its quiet operation, efficient cooling, and inverter compressor technology, which contributes to lower noise levels (around 42-44 dB) and better energy efficiency compared to traditional models

. Other top contenders include:

• LG Dual Inverter Smart Window Air Conditioner , noted for its quiet operation and smart features, considered the best overall by some reviewers

• GE Profile ClearView Window Air Conditioner , which offers a unique design that hangs on the window sill, providing almost a full window view and quiet operation, though installation can be tricky

• The Windmill AC , a modern, easy-to-install, quiet, and efficient window AC with smart app control and dual filtration, also highly rated for quietness and energy efficiency

If quietness and energy efficiency are your priorities, inverter compressor models like the Midea U-Shaped and LG Dual Inverter are recommended. The Midea U-Shaped model is often highlighted as the best balance of performance, quietness, and price, making it the top pick for most users