As of 2015, Friedrich and LG are the two brands that consumers rate as making the quietest air conditioners. Consumers also rate these brands highly for energy efficiency and quality. Consumers rate the Friedrich units as being more attractive than most air conditioners.
The two Friedrich models that consumers rate highly for their quiet operation are the Friedrich CP06G10 and the Friedrich Kühl SS08M10. The latter is the more expensive of the two and it includes extra features such as a seven-day timer and different color options. The LG LW1212ER is a 12,000 BTU unit that is made to cool larger spaces than the Friedrich models.