This air conditioner did not live up to what I was expected, it advertised that have been that it would covered 400 square feet I am a full-time RV I bought this figuring if my overhead AC went out, it might cover 200 square feet well my RV is 31 feet long about 270 square feet slide outso what I discovered was that it might cool an area of 100 square feet and that is about it. Now the dehumidifier does work very well that is a high price to pay for just a humidifier. So buyer beware you are better off with a window unit at 10000 BTU then this unit. Sorry I hate leaving these bad reviews but I felt it was necessary.