Which of the following might be used for respirator protection in a technical rescue?

In the context of technical rescue operations, SCBA, or Self-Contained Breathing Apparatus, is vital for respiratory protection. This equipment provides emergency responders with a portable supply of breathable air, allowing them to operate safely in environments that may contain hazardous gases, smoke, or lack of oxygen.

The SCBA consists of a tank filled with compressed air, a pressure regulator, and a mask that fits over the face. This setup ensures that rescuers can breathe freely while performing their duties in potentially dangerous situations, such as confined spaces or at chemical spills. Utilizing SCBA helps to minimize health risks and maintain operational effectiveness during rescues.

In contrast, the other choices are not directly related to respiratory protection. AHJ (Authority Having Jurisdiction) pertains to regulatory bodies that enforce safety standards and codes, OSHA (Occupational Safety and Health Administration) refers to the federal agency responsible for ensuring safe working conditions, and PASS (Personal Alert Safety System) is a device designed to alert others if a firefighter or rescuer becomes motionless. None of these options serve the purpose of providing breathable air in hazardous environments like SCBA does.