positive pressure ventilation

Positive Pressure Ventilation (PPV) is a firefighting technique used to clear smoke and heat from a building. Firefighters use powerful fans to introduce fresh air into the structure, creating higher pressure inside than outside. This causes smoke and heat to be pushed out through windows or doors, improving visibility and making it safer for firefighting efforts. PPV helps control the environment inside a building during a fire, allowing for quicker search and rescue operations and reducing the risk of flashover, a dangerous fire re-ignition. It’s a strategic way to enhance safety and efficiency in emergency situations.