Compressed Air Breathing Apparatus

Last updated: May 13, 2024

What Does Compressed Air Breathing Apparatus Mean?

A compressed air breathing apparatus (CABA) is a type of respiratory protection equipment that provides breathable air from cylinders containing compressed air. It is used by firefighters, rescue workers and others who operate in environments where air quality may present an immediate threat to human health and safety.

A compressed air breathing apparatus is also known as self-contained breathing apparatus (SCBA).

Safeopedia Explains Compressed Air Breathing Apparatus

CABA consists of the following:

  • A single or a pair of high-pressure cylinders made of steel, aluminum or carbon-fiber composite (200-300 bars)
  • One pressure regulator, gauge
  • Face-seal mask or facepiece, mouthpiece and connecting supply pipes
  • A carrying frame or pack

CABAs can include one or two cylinders, which can provide breathable air for 30 to 45 minutes.



Self-Contained Breathing Apparatus (SCBA)

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