- Positive-pressure ventilation (PPV) fanA positive-pressure ventilation (PPV) fan is a tool used by fire departments for postfire ventilation1. It pressurizes the inside of the structure and “pushes” or “forces” smoke out of the structure1. PPV can assist in the venting of smoke and high temperature combustion products and make attacking the fire easier2.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The positive-pressure ventilation (PPV) fan is a great tool to have on the fireground for postfire ventilation. It will provide ventilation by ways of pressurizing the inside of the structure and “pushing” or “forcing” smoke out of the structure.www.fireengineering.com/firefighter-training/the-po…Fire departments may use ventilation blowers or fans to pressurize a structure prior to suppressing a fire. This pressurization or positive pressure ventilation (PPV) tactic can assist in the venting of smoke and high temperature combustion products and make attacking the fire easier than without PPV.www.nist.gov/el/fire-research-division-73300/firego…
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