A science expert has said single-hose portable air conditioners have "a major design flaw", and demonstrated a simple DIY ...

Many people have picked up air conditioners in an effort to beat the searing temperatures over the past few weeks. But ...

Looking for more ways to cool off? Check out CNN Underscored’s Guide to Beating the Heat for the products that help us cope with high summer temperatures. Portable air conditioners are generally ...

No central AC? As the National Weather Service warns of dangerous heat across much of the US next week, we tested dozens of air conditioner units to see which delivers the best cooling performance.

Lots of people have bought portable air conditioners during the recent heatwave - but they're not as efficient as they should ...