This is the most feature-packed portable AC I've used—and I didn’t pay for it in my energy bill.

These ACs from Frigidaire, GE, LG, and Midea can keep things cool and quiet while you sleep U-shaped air conditioners like this Midea can run quieter because they use your window to block out noise.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Compact portable air conditioners can be hit or miss. Sure, they’re easy to move around, but too often they end up feeling more like glorified fans, leaving you wondering: Are portable air ...

You probably don’t spend much time thinking about the compressor in your air conditioner, at least as long as it’s pumping out cool air. But if you’re in the market for a new window AC this season, ...

If your home doesn’t have central air conditioning, buying something to keep you cool is a nonnegotiable, at least in my opinion. Temperatures are higher than ever worldwide, according to NASA, so ...

Fall may be a few weeks away, but it’s still plenty hot out: In many regions of the country, temperatures are still hovering in the 90- to 100-degree Fahrenheit range. This means staying cool is top ...

Prepare for easy setup, effective cooling, and the ability to move from room to room.

A conventional air conditioner is, by definition, a trade-off. Yes, you get a cooler room, but in exchange you effectively lose one of your windows. The sash remains closed all summer long and that ...

As is the case for many people, my home cannot be retrofitted with central air. My 100-plus-year-old Brooklyn apartment, which features prominently in my seven years of air quality reporting for WIRED ...

But there are times when your trusty old air conditioning unit just doesn’t seem to keep up anymore. This situation is common, and many find themselves considering AC replacement in Rochester, MN, ...