Hello gyuzz hitachi is a cool product in air condition as well we all know that hitachi kaze I enclosed in my room till 1 year its not any noise in it any via the any problem suffering it is too very good enerzy saver and best cooling I use hitachi previouse one year and I dont get any problem its serivers ceneter cusmtmer care is also very good in neture to solution our problem so hitachi is a very good brand so gyuzz do not miss it. Its is a brand which is use of money .