“access the vent "flapper"? A review on here mentioned removing the "flapper" to reduce the noise when using the fan, how to you access it? thanks”
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That's only when you are venting out of the top... Their is a metal flapper that you would install for that type of installation.
Sorry, there was a problem. Please try again later.The damper door is designed to prevent air and debris from falling back into the unit when the vent is off. We do not recommend to remove this damper door.
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