Tunnel safety technology

Life-saving safety technology in tunnels!

Traditional reversible jet fans as well as BananaJets are used in most tunnels around the world for ventilation in case of fire.

Witt & Sohn AG is continuously setting the highest standards.

We offer a large choice of installation positions, designs, gauges, materials and impellers in order to develop the optimal ventilation strategy for each and every operating scenario.

Our quality management system has been certified to ISO 9001, ISO 14001 and ISO 45001.

As a member of EUROVENT, the European standards committee for fans, Witt & Sohn AG is one of the initiators of specific international safety regulations.

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