High-powered fans are used to improve visibility inside an engaged building by quickly removing smoke. Positive pressure ventilation (PPV) is a fire service tactic that can enhance rescue efforts by helping remove smoke and toxins from a structure.
PPV can create an improved environment, with less risk of injury to the rescuers and a clearer path to the seat of a fire, which ultimately may improve conditions for fire and rescue attempts.
PPV may also decrease the losses caused by smoke damage to a structure.
Browse all our fire ventilation equipment.
What is a PPA technique?
A positive pressure attack combines mechanical positive pressure ventilation to remove smoke before fire control and prior to advancing into a building for victim rescue.
PPV fans create higher pressure inside the building, which forces interior air out of the structure through an exit hole when lower pressure builds. PPA can decrease a fire’s ability to spread and advance.
