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

This is similar, but acts more like an evaporative cooler (not really a traditional air conditioner but it does the job). It uses a LOT less energy than an air conditioner unit so there won’t ...

Don’t sweat it if your central air conditioning won't blow cold air. Here’s how to troubleshoot and fix problems with its indoor and outdoor components.

[VincentMakes] got a portable AC unit for his home, but he found that the place he wanted to put it was too far from the only window he could use to dump the hot air. Having too long of a duct on ...