Which firefighting technique is recommended to control smoke in structural fires?

The recommended technique for controlling smoke in structural fires is positive pressure ventilation. This method involves the use of fans to create a pressure differential that forces smoke and heat out of the structure while drawing in cooler, fresh air from outside. This process helps to improve visibility for firefighters, reduce the heat within the structure, and minimize the potential for smoke damage to property. By actively managing the smoke, it also protects the lives of occupants who may still be inside.

Positive pressure ventilation operates on the principle of airflow management, ensuring that smoke does not accumulate and creates a more favorable environment for firefighting efforts. Furthermore, this technique can assist in ventilating toxic gasses and improving air quality as the fire is being suppressed.

In contrast, while all-out extinguishment focuses on completely putting out the fire, it does not specifically address smoke control. Using foam agents is primarily effective for suppressing flammable liquids and preventing re-ignition but does not provide a means for managing smoke within a structure. Ground surveillance involves reconnaissance and assessment of the fire scene but plays no direct role in smoke control during firefighting operations.