Efficiency rating meets or exceeds 13.00 SEER-which can save hundreds of dollars a year, compared to a standard air conditioner;High-efficiency outdoor coil-provides exceptional heat transfer and low air resistance for high-efficiency operation;Sound levels-as low as 76 dB;Direct-drive fan-precision-balanced direct-drive outdoor fan is designed to provide quieter operation and longer product life;Dependable scroll compressor-provides smooth, efficient and reliable operation;Designed to work with the Humiditrol whole-home dehumidification system;Chlorine-free R-410A refrigerant-meets the EPA's most stringent environmental guidelines;Permaguard Cabinet-heavy-gauge, galvanized steel construction, louver coil guard, baked-on powder finish and durable zinc-coated steel base provide long-lasting protection against rust and corrosion