MISTRAL Pressure Differential System (PDS)
Automatic smoke detection in case of fire and warning of the occupants of the threatening danger Fan blows outside air into the staircase and prevents an hazard in the escape route. Control of door opening forces by over pressure release an/or pressurer relief vents. Positve pressure preventes the smoke from entering the escape route. Harmless evacuation of the occupants over a smoke free staircase. Pressurization saves lives of firefightes. Result: Optimal technique to guarantee smoke free rescue routes to the benefit of occupants and firefighters.