Sometimes you come perhaps once in a situation where this part is necessary

And I must say: Easy does it not really. The mask is activated by opening the carrying case ("Soft Pack") - during removal from the bag both filter plugs are removed automatically. Setting up is quick and easy - very important when it comes to minutes or even seconds. Much thought you do not have here because of the thoughtful application concept. It's like the first aid - everything goes easy, eliminates errors. I recommend to look definitely the video on this site.

If the fire escape hood is not used, makes up for at least eight years of filter change is required. This is also described in the manufacturer's video good.

CONCLUSION: My impression is this fire escape hood is just as easy to use as a defibrillator - once seen and understood. Who has bravely served his military service should also have no fear of contact with this life-saving equipment. And fifteen minutes, which gives a this thing, can be lifesaving for oneself or other people.