Millions of Americans are still working from home, sometimes in attics, basements, and other nooks and crannies that serve as offices. And often these out-of-the-way spaces don’t benefit from the air ...

Based on Consumer Reports’ testing of portable air conditioners, they should be seen as a last resort for cooling a home when fans aren’t enough or other types of air conditioners aren’t an option.

Like any appliance, air conditioners need a little TLC to deliver optimal performance. And it’s the ACs that haven’t been kept in top-notch condition that tend to struggle most. You don’t need to lose ...