WEB WATCH

摘要

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