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plenum ventilation

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noun
a system of mechanical ventilation in which fresh air is forced into the spaces to be ventilated from a chamber (plenum chamber ) at a pressure slightly higher than atmospheric pressure, so as to expel foul air.
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Origin of plenum ventilation

First recorded in 1835–45

Words nearby plenum ventilation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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