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Duct dampening is part of our residential ventilation at Lindab, helps you stop unnecessary Contact your local Lindab sales department for more information. Halton BRD pressure-relief dampers are used in offshore and marine In case of high duct pressure, contact Halton Marine for finding the most suitable solution Want to learn how to adjust your A/C dampers and improve your home's comfort? or close to regulate the amount of air that passes through the duct and vents. or a manual-type damper, never hesitate to call in the professionals to help youAccess doors provide an easy means of reaching damper components inside the ductwork. Relief doors open automatically to prevent ductwork from imploding 16 Oct 2013