Carrier is the best sir conditiober brand in india compared rest of the air conditioners.now adys these are available fro less cspacity to high capacity depending upon the room size, carrier air conditioners are littlebit costly compared to rest if all air conditioners in india due to therpe high performsnce for long time, these airconditioners provides less noise and vibratiobs during eorking conditions, these air conditiners we can install for both residential and commercial appications, by proper maintenance we can run these air conditioners for long time without any problems, and service is also acceptable