Fresh 48+ Positive Pressure Ventilation Fire Fighting
Fresh 48+ Positive Pressure Ventilation Fire Fighting. In this technique, a large fan is placed in front of a door (inlet vent) of a house containing a fire so that heat and smoke can be blown out of the. Ventilation is a part of structural firefighting tactics, and involves the expulsion of heat and smoke from a burning building, permitting the firefighters to more easily and safely find trapped individuals and attack the fire.