I saw some people criticizing this, but here't the deal. Firefighters go through an immense amount of training. I mean think about all of the different situations where they are basically the only ones that can help you. House fire, car accident, flooding, medical issues...these guys and gals have to know a LOT of stuff. I can't imagine any of the training for those things can be "fun" but it is valuable when it comes to saving someones life. In this case, this department decided to do something different in order to work on breathing and air management. It's good for team building, and it benefits them in dealing with some of the physical challenges they face when they actually get thrown into action.
SO...take your negative comments elsewhere because I love it!