A self-contained breathing apparatus (SCBA), also known as a compressed air breathing apparatus (CABA) or simply a breathing apparatus (BA), is a device that is worn to supply breathable air in an environment that is immediately harmful to life or health.
A self-contained breathing apparatus (SCBA), also known as a compressed air breathing apparatus (CABA) or simply a breathing apparatus (BA), is a portable device that provides breathable air in hazardous environments, protecting the wearer from harmful substances.