The LG Dual Inverter became the first inverter-equipped window AC available in the U.S. back in 2018, and it was far quieter and more efficient than any of its predecessors. But it wasn’t long before ...

Like any appliance, air conditioners need a little TLC to deliver optimal performance. ACs that haven’t been kept in top-notch condition tend to struggle most. We asked air conditioner pros and ...

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