DESC: The LG LS120CE features high efficiency of 13 SEER with the R-410A Refrigerant, Chaos Swing - Computer controlled vanes create a more natural flow of air, reducing temperature stratification. Ultra-Quiet Streamlined Air Fan - Interior units have a cross-flow fan that operates at low speed but generates more air. Special fan housing creates smooth, quiet air flow and the unit's low-voltage DC motor operates with minimal noise. Jet Cool - Operates at high speed for up to 30 minutes to quickly cool a room down to 65° F.