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. ACs that haven’t been kept in top-notch condition tend to struggle most. We asked air conditioner pros and ...

I have years of experience testing top home and kitchen products. We've sent this story to your inbox. Portable air conditioners are worth buying in many situations. Many models are now designed for ...