Let me start off by saying if you got this because of a cheap price it's not worth it return it while you can. The remote on this thing is no good maybe it was the unit I got but the remote would never set the temperatur. I would always have to manually enter it in. It does cool a small area really well but you have to make sure you close off the room or area otherwise the cold escapes. And the cooling is shor tived. SO I would say this thing cools small areas or rooms quite well. The hose attachments are clunky and dont fit well on the window.