Making negative pressure ventilation firefighting work
Most departments prioritize positive pressure these days, but negative pressure ventilation firefighting is still a solid tactic when you're dealing with tricky layouts or stubborn smoke. It isn't always about blowing air into a structure; sometimes, the best move is to suck the heat and contaminants right out of the building. While it might feel like a bit of a "throwback" technique compared to the high-powered fans we see on every engine today, understanding how to pull air instead of push it can make a massive difference in specific fireground scenarios. ...