Do you know what a PASS device is? 🔔 A PASS device (Personal Alert Safety System) is a personal safety device used primarily by #firefighters entering a hazardous or Immediately Dangerous to Life and Health (IDLH) environment such as a burning building. The PASS device sounds a loud audible alert to notify others in the area that the firefighter is in distress. On a fireground, the sound of an activated PASS device indicates a true emergency and results in an immediate response to rescue the fi