Question: is 1.2 ton ac room size?
Answer: If your room size is between 80 and 120 square feet in area, you can effectively cool the room with a one ton air conditioner. A 1.5 ton AC will be adequate for a room size ranging from 120 to 190 square feet and you may need a 2 ton air conditioner for a room size ranging from 190 to 300 square feet.