We just brought this cooler for 6600 it got honeycomb structure which gives good cooling its is quite bulky and have water level indicator which give you rough idea about water level it have blower tech which reduce the use electricity and have 4 way blowing tech which cools the room from all around at starting it produce foul smell of that plastic and some times leak water level you can add ice to it to get more cool air it can make room cool faster than any coller in market