This 12000 Btu ductless mini split delivers 12500 Btu heating and covers up to 750 sq. ft. with a 19 SEER2 inverter compressor that reduces energy use across four operating modes. Sleep and Mute modes keep noise as low as 28 dB, and the 135degree(s)F self-cleaning cycle with removable washable filter ensures easy long-term upkeep.