Zero Visibility Orientation Every day, firefighters across the United States immerse themselves in the IDLH atmosphere of structural fires. These incidents are among the most dangerous for firefighters and therefore should be the ones for which we are most prepared. When it comes to structural fires, we have three main priorities. In order are life safety, fire control and property preservation. Since life safety is our top priority, we put all our efforts to ensure that this task is achieved. This means that the fire department is constantly working to improve life safety technology and methods. Among the research there is that of zero visibility wayfinding. Firefighters enter structures, only to be immediately blinded by smoke enveloping them during a fire. Firefighters must always be aware of their position during the rescue so as not to become the victims themselves. This article, written by Tim Robinson for Fire Engineering Magazine, does a great job providing several new methods for staying calm in perceptually and conceptually blind situations...