“Is it effective if the windows are left open? We don't have ac”

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• Air cleaners clean the air that is present. So yes it will clean but if more air is coming in, not all air will be cleaned as like if the windows were shut.

  Answered by Caja101a 8 years ago

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• Hi Madtown. The unit will still work efficiently even with the winnows left open. For better use however we recommend the windows be closed. If you have any further questions for us, please let us know at [email protected].

  Answered by Sharp Advisor 9 years ago

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