Final answer:
An SCBA is a device used by firefighters and rescue workers to provide breathable air in dangerous environments. It is used during operations like search and rescue in burning buildings, and it can only be operated by trained personnel.
Step-by-step explanation:
A self-contained breathing apparatus (SCBA) is a device worn by rescue workers, firefighters, and others to provide breathable air in an atmosphere that may be immediately dangerous to life or health. This gear is used during situations such as a search and rescue in burning buildings. The SCBA consists of a high-pressure tank, pressure regulator, and an inhalation connection (mouthpiece, mouth mask or face mask), all carried by the user. Remember, only trained personnel should operate SCBA as incorrect usage could lead to fatal accidents or inefficient rescue operations.
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