An article that discusses a tactical firefighting research about positive pressure ventilation (PPV).
An article about Positive Pressure Ventilation (PPV) Tactics. Improving firefighter safety is an ongoing effort for the fire service. A series of fire experiments were conducted by the National Institute of Standards and Technology’s (NIST) Building and Fire Research Laboratory to better understand the effectiveness of using fans at different locations to reduce the temperature in stairwells, corridors, room of origin, etc.
An article about the basic principle behind positive pressure ventilation. It is using a fan to move air from the exterior of the structure and forcing it into the interior. This action increases the air pressure on the interior to a level greater than the exterior. As a result, smoke and heated gases are forced out of the structure through any vents available. This process creates a path of moving air that follows the path of least resistance and travels from the fan to the vent.
An article about a research on positive pressure ventilation (PPV). The objective of this research is to improve firefighter safety by enabling a better understanding of structural ventilation techniques, including positive pressure venting (PPV) and natural venting.
Video length: 3 min 57 secs. This video demontsrates a PPV.
An article about positive pressure. It is a pressure within a system that is greater than the environment that surrounds that system. Consequently if there is any leak from the positively pressured system it will egress into the surrounding environment.