Three-in-One Unit: Black and Decker portable air conditioner combines an air conditioner, dehumidifier and fan in one machine for all your cooling & ventilation needs in rooms up to 550 sq. ft. Follow Me Remote: Our portable AC unit comes with a full function remote control that features a FOLLOW ME function, which allows the remote to act as a thermostat for precise temperature control. For Large Rooms & Bigger Spaces: Our home air conditioners provide fast, effective cooling for up to 550 sq. ft., making it ideal for apartments, cabins, entire floors and larger living spaces. Simple To Use: Our portable air conditioners help keep you cool and comfortable all summer with little maintenance required. Auto water evaporation feature helps limit draining water buckets. Easy Window Install: Wheel our room ac near a double hung or sliding window and install using the included exhaust hose & window adapter for simple install and takedown for the end of season.