As you know samsung product is best for medium family as well as for rich family because of there comfortability and cheap price and the Samsung AR18JV5NBWKNNA 1.5 Ton Inverter Split AC is very good for 20* 30 room for cold air there electronics are easy to use as you know there service and support is time to time and there colling and sound is also good and most important valueable for money. so buy quickly