When you buy through our links, Insider may earn an affiliate commission. Learn more.
Central air conditioning is a great way to cool your home, but a window air conditioner is your second-best option if it isn’t. Window air conditioners can cool any room with a single or double sash window. You can reduce costs by choosing an Energy Star* certified appliance. All our window choices are certified.
Window air conditioners are safe and easy to install if you follow the manufacturer’s instructions. Most models feature security brackets to keep burglars out and your AC in place.
If your window isn’t suitable for a window unit, consider a portable air conditioner. We’ve listed our best portable air conditioner pick in this guide, but you can also check out our portable AC guide.
For this guide, we tested 13 window air conditioners and consulted Enesta Jones, spokesperson for the US Environmental Protection Agency (EPA). We subject each unit to a series of objective tests. Plus, we answer FAQs for your air conditioner and define some common terms.
Learn more about how Insider Reviews tests and researches home products.
The best window air conditioners in 2022
Best air conditioner overall: Friedrich CCF08A10A Chill Premier Smart Window Air Conditioner, $399 available at AJ Madison
If you have a medium-sized room, the Friedrich CCF08A10A Chill Premier Smart Window Air Conditioner is your best bet with its impressive cooling capabilities, smart connectivity and long warranty.
Best cheap air conditioner: GE AHY08LZ EZ Mount Window Air Conditioner. $319 available on AJ Madison
The GE AHY08LZ EZ Mount Window Air Conditioner is your best bet if you’re looking for an inexpensive way to cool your room, with its low-decibel output, exceptional cooling, and ease of installation.
Best energy efficient air conditioner: Midea MAW08V1QWT U Inverter Window Air Conditioner, $359 available at Amazon
The Midea MAW08V1QWT U Inverter Window Air Conditioner features a unique U-shaped design that allows you to open the window when installed, and it’s one of the few air conditioners to earn the “most efficient” certification. ‘EnergyStar.
Best air conditioner for small rooms: Haier ESAQ406TZ window air conditioner, $399 available on Appliances Connection
The Haier ESAQ406TZ window air conditioner is ideal for bedrooms and home offices thanks to its ultra-quiet design.
Best air conditioner for large rooms: LG LW1517IVSM Dual Inverter Smart Window Air Conditioner, $529 available at AJ Madison
The LG LW1517IVSM Dual Inverter Smart Window Air Conditioner offers an impressive combination of quiet operation, exceptional performance and energy efficiency.
Best Portable Air Conditioner: LG LP1419IVSM Dual Inverter Smart Wi-Fi Portable Air Conditioner, $668 available on Abt
The LG LP1419IVSM Dual Inverter Smart Wi-Fi Portable Air Conditioner is a complete, energy-efficient unit that can be controlled by your phone or your voice.