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

enjoying the quiet, pleasantly chilly breeze after a hot day in the sun. For this reason, its line of portable air conditioning units include patented noise-isolation technology to give you all ...

Quietest While our guide features several quiet portable air conditioners ... We measure noise output with a decibel meter, but generally, you can expect units with more Btu to be louder.