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Is it stricly needed to create a hole for the incoming air in a room where a domestic or industrial fan has been installed?

April 26, 2017air create domestic fan hole incoming industrial needed room stricly

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Is it stricly needed to create a hole for the incoming air in a room where a domestic or industrial fan has been installed?

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A- YES, otherwise the air replacement would not be possible and the fan action would be useless because, in order to have a proper ventilation, extracted air must be replaced by the same quantity of incoming air. In our Catalogue You could find the necessary grilles for this purpose.