“Does the unit have to be used with a hose going out of the window, or can it be used alone with no window hookup?”

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• Hi AM - Thanks for viewing GE! Portable air conditioners exhaust hot air produced by the cooling (heat exchange) process through the exhaust hose. This is why it is necessary to use the exhaust hose and why it must go outside. If you have any additional questions, do not hesitate to ask, we are also happy to help at GEAppliances.com! Sue

  Answered by GE Answers 5 years ago

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• Must use hose out the window

  Answered by Maggs 5 years ago

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• Always, otherwise the hot air will stay inside the room.

  Answered by Jbsanchez 5 years ago

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