Definition & Operational Usage
Positive Pressure Attack (PPA) is a fire suppression tactic involving the use of a fan or blower to introduce air at a higher pressure into a structure, typically through a controlled entry point, to push smoke and heat away from firefighters and occupants. This method improves visibility and reduces thermal stress while the attack line applies water to control the fire. Not to be confused with positive pressure ventilation, PPA integrates suppression and ventilation efforts under coordinated fireground tactics to enhance safety and efficiency.
Category context: Core tactics, command, suppression, ventilation, search, and water supply terminology used on the fireground.