Explore Helix Earth's innovative cooling system that cuts energy use by 50% and reduces CO2 emissions. NASA-inspired cooling ...

In the dog days of summer, there’s nowhere a dog—or person—would rather be than in front of the air conditioner, enjoying a pleasant breeze instead of the sweltering heat outside.

But if you’re in the market for a window air conditioner, there’s a style of compressor–called an inverter–that operates more ...

When you use links on our website, we may earn a fee. Want to beat the heat without paying for central air? A portable air conditioner keeps you cool when outdoor temperatures start rising.

Instead, I rely on a combination of five air conditioners to keep the 4,000 square feet cool. I've tested dozens of the best air conditioners over the last six years, and one of the portable air ...