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Roundtable: Ventilation Science and Firefighting

By John "Skip" Coleman New things come and go in the fire service. Some new devices prove themselves and remain in use while others are tried and discarded. Technology faces a daunting challenge with regard to the "that's-the-way-we've-always-done-it" fire service mentality. I remember going to the drill school in the late 1970s and early 1980s to watch a demonstrations of positive pressure fans. I watched as strings of toilet paper were taped to windows and doorways to "scientifically" show the benefits of using of positive pressure ventilation (PPV). Those fans sure could make that toilet paper wave in the wind! For years, such demonstrations, along with tr...

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