Profession, "fireman" - a veryancient,and in a waydifferent from allothers.Firefightersworkin an ever-changing andoftenvolatile environment.In a burningbuildingin need of rescuemay lack thenormal structural integrity, and the meansof access,such as stairsand elevatorscanbe dangerousbecause of the fire.The workis oftenstrenuous andmanysituations requirethe use ofspecialized personal protectiveequipment.Firecan causeto workin a variety ofemergency situations suchas traffic accidents,industrial disasters, floods,earthquakes, civilunrest,hazardous chemical or hazardousmaterials,aviation and maritimeaccidents.