Smoke is recognized as the major killer in fire situations. Smoke often migrates to building locations remote from the fire space, threatening life and damaging property. Stairwells and elevator shafts frequently become smoke logged, thereby blocking evacuation and inhibiting rescue and fire fighting.
Without smoke control With smoke control
1.Fire Dampers are closed & Ventilation Fans are shut off
2.Smoke Exhaust and Pressure Relief dampers in the fire zone are opened & Smoke Fan is started
A Smoke dampers at each Guest room
B In the case of fire:
1. All smoke dampers are closed
2.Fans and fire dampers react only if the fire spreads