Blue star split ac is one of the best ac in my home I am taking a service in this ac and I feel look like temperature in my room too change that time I have purchased this product blue star split ac am very happy for that and now am using this service when I come back to my home am feel very uncomfortable without ac but when I enter the my bed room open the ac after few minute am feel very well becouse after open this ac after few minute your room is very cool and abou the space this ia a split ac not a window so you can easily purchase and use this product service