This is second AC using for second bed room. My bed room size is 12X14 and I am using 1.2 ton only. Earlier I used 1.5 ton Ac of another brand but AC is not sufficient for the room. Now I am using 1.2 ton Hitachi AC and feeling very cool. Its having very latest ion technology which purifies pollution and bad smell from the air. Since 2yrs there is no problem and its fully value for money. Its design is awesome and no voice from the system. Very durable and reliable AC in my life. I am very much satisfied with this and I will suggest for my friends to purchase this.