Consumer Reports ranks the GE AEM05LS, the LG LW8014ER and the LG LW1214ER among the top room air conditioners on the market as of 2015; testing included measurements of air conditioner noise. Although Consumer Reports also tested portable air conditioners, none met the manufacturers' claims regarding cold air output.
Although the GE AEM05LS could use a lower fan setting to minimize noise at night, it runs fairly quietly and cools a room of 100 to 300 square feet very efficiently. Consumer Reports ranked the LG LW8014ER as a "best buy" for its ability to cool up to 400 square feet quietly. While the LG LW1214ER is not easy to install, it cools far more than the 650 square feet for which it's intended and has low noise ratings. The testers measured noise ratings objectively using a sound meter.