The best air conditioner

This post was done in partnership with Wirecutter. When readers choose to buy Wirecutter's independently chosen editorial picks, it may earn affiliate commissions that support its work. After six summers of researching, testing, and recommending window air conditioners, we've learned that quiet and affordable ACs make most people the happiest--and we think the LG LW8016ER will fit the bill in most rooms. This 8,000 Btu unit cools as efficiently and effectively as any model with an equal Btu rating, and runs at a lower volume and deeper pitch than others at this price. Little extra features like a fresh-air vent, two-axis fan blades, and a removable drain plug help set it apart, too. The LG LW8016ERis a top choice for an office or den, and some people will find it quiet enough for a bedroom, too. If our main pick is sold out, grab the Frigidaire FFRE0833S1. The Frigidaire is also a little bit easier to install because it's smaller and lighter. If you're buying an air conditioner for your bedroom and don't mind paying a little extra, treat yourself to the Frigidaire Gallery FGRQ08L3T1. It's the quietest window AC we've tested over the past few years. It's also easy to install, and it comes with plenty of extra foam for insulation. By June 2017, this model had sold out for the season, so you may need to act fast if you're interested in it this year. We're also recommending the Frigidaire FGRQ0833U1 as a backup in case the L3T1 goes out of stock. The 33U1 is more expensive, and we haven't tested it ourselves, but Frigidaire confirmed to us that the two models are essentially the same. Both are 8,000 Btu rated, have Energy Efficiency Ratios of 12, and are designed to cool rooms up to 350 square feet.