Goldstar 5,000 Btu Air Conditioner Model # GWHD5000. This is an older window unit yet it works perfect. This is what I use daily in my bedroom and have for 2 years. There have been no problems and the screens on both sides are in perfect condition as well as the filter on the inside. This was given to me by a friend so I don't the actual age of it but despite that it runs quietly and great.