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Shaft Installation

Shaft Installation
The ventilation shaft filter system was installed in the Festningstunnel, Oslo, Norway. In this application 3 fans are able to move over 200.000m3/hr of cleaned air from the tunnel through a ventilation shaft. The air is cleaned to protect the local population from the heavy pollution cause by traffic using the busiest tunnel in Norway. The system is automatically started by CO monitors and visibility monitors in the tunnel.

 
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