Breathing Apparatus
Used in firefighting and industry, a Self Contained Breathing Apparatus (SCBA) also known as Compressed Air Breathing Apparatus (CABA) is a device worn to provide breathable air in an atmosphere that is immediately dangerous to life or health. This when used underwater is known as a SCUBA set (self-contained underwater breathing apparatus).
An SCBA typically has three main components:
- A high-pressure tank (e.g., 2,216 to 5,500 psi (15,280 to 37,920 kPa), about 150 to 374 atmospheres),
- A pressure regulator
- An inhalation connection (mouthpiece, mouth mask or face mask), connected and mounted to a carrying frame
SCBA can either be classified into an open circuit or closed circuit. An essential for modern firefighting and today’s complex fire grounds, SCBA is a foundational tool that provides the greatest amount of airway protection from toxic gas and harmful particles resulting from the fire.
