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    Kane4269's Avatar
    Kane4269 Posts: 1, Reputation: 1
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    #1

    Nov 12, 2008, 06:35 AM
    Bathroom condensation
    Why do I have condensation in my bathroom after taking a shower despite opening a window in the room?
    KBC's Avatar
    KBC Posts: 2,550, Reputation: 487
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    #2

    Nov 12, 2008, 07:30 AM

    The lack of ventilation has a lot to do with it.

    Condensation forms when moisture is attracted to a colder surface,Cold cannot hold moisture as well as hot.

    A window opened isn't enough airflow to compensate for the amount of moisture in the air.

    A ceiling mounted exhaust fan would lessen the moisture in the air.

    KBC
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    Nov 12, 2008, 07:56 AM

    Yep, look up a dew point table. Moisture forms on a cold surface depending on the surface tempurature and the temperature and humidity of the air.

    That's why I have a delay-on-break timer on the fan. It runs the fan for about 30 minutes after the switch is turned off.

    Panasonic apparently makes some of the quiteter fans. I use one with a heat lamp, fan, and regular bulb although not Panasonic.
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