The BlowerDoor Standard system with a measuring range of 19 – 7,200 m³/h is used in new construction and renovation of residential and commercial buildings. If very large residential and administrative buildings or industrial and warehouse buildings are measured, the measuring system is expanded to the BlowerDoor MultipleFan system thanks to its modular design. The compact BlowerDoor MiniFan measurement system has been specially designed for use in very tight buildings and individual apartments, as well as for testing the tightness of research and laboratory buildings. Its measuring range is 5 – 2,300 m³/h, and the handy measuring fan weighs a light 2.7 kg. 

The BlowerDoor measurement is recommended for quality assurance during the construction phase, as a final measurement after completion of the construction process, before the warranty expires and in existing buildings before renovation or for damage analysis.

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