The best portable air conditioners keep rooms cool and offer a degree of air filtration. We test for cooling ability, noise, and energy efficiency.

This isn't an all-weather, cold-climate heat pump -- it can operate in temperatures ranging from 50 to 104 degrees Fahrenheit ...

Zero Breeze Mark 3 is a battery-powered portable air conditioner to cool off whether out on the deck or camping in the wild.

The Mark 3 portable air conditioner combines cutting-edge technology with portability, offering up to 20 hours of cooling on ...

Whether you want to extend how long you can enjoy a seasonal room or just want to warm up a cold area of your home, these appliances will keep you toasty.

Raging winter wildfires in Los Angeles are a grim reminder of how quickly wildfire smoke can creep into your neighborhood – ...

This Mark 3 is a cumulation of the latest advancements in portable air conditioning technology, offering powerful cooling ...

Our experts say these portable AC units from brands like DeLonghi and Honeywell are worth buying. They're movable and keep ...

Then check out the best large power banks. Alternatively, if you’re after something even more portable, head to the best small power banks. The medium power banks we tested All the medium power banks ...

To be clear, these aren't the big kahunas needed to run a refrigerator or air conditioner. (Check our roundup of the best big portable power ... laptops, small appliances and so on.