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 What is a blower door test?The blower door is a powerful fan that mounts to the frame of an exterior door.  The fan pulls air out of the house, lowering air pressure inside.  The higher outside air pressure then flows inside the house through all unsealed cracks and openings.Benefits Reduce energy consumption due to air leaks.Avoid moisture condensation problemsAvoid uncomfortable drafts caused by cold air leaking in from outsideSave on heating and air-conditioning cost.

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