Zoom	Automatic Smoke Shaft System Fire Smoke Dispersment AOV Safety Extraction Motor Our Price:  £834.74   Availability      In stock Add to Basket Share Tweet

How does this eliminate smoke from a lobby?

1. Smoke detector detects smoke which initiates the smoke shaft

2. Lobby vent to the smoke extract shaft opens

3. Folding arm actuator opens the door to the stairwell

4. Stairwell vent opens to allow fresh air to enter

5.On the roof, the fans in the smoke extract unit begin to remove smoke via the smoke extract shaft

6. Fresh air is drawn into the stairwell

7. Smoke in the lobby is removed via the smoke extract shaft

8. The system becomes ready for firefighters