With its stylish full-function remote, you can even get your cool on from across the room. Plus, LG's patented Gold Fin anti-corrosion coating provides a protective shield so the unit lasts longer. Ventilation Lever should be kept in the CLOSE position in order to maintain the best cooling conditions; when fresh air is necessary in the room, you can set this ventilation lever to the OPEN position to open the damper for fresh air venting.