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For the blower door measurement at the project Zalando differential pressure gauges were provided with a flow rate of approximately 400,000m³/h. The devices have been installed in four overhead doors, reserves were held. In three goals were special frame 27 BlowerDoor installed with a flow rate of 202.500m³/h, the fourth goal was a Infiltec G54 fan installed with a flow rate of 130.000m³/h

The measurement of the blower door test world record
(Mounting the differential pressure measuring devices with 400,000m³/h flow rate)