SCBA stands for “Self-Contained Breathing Apparatus.” It is a critical piece of personal protective equipment used by firefighters and other individuals who work in hazardous environments where the air quality may be compromised, such as in fires, hazardous material incidents, or confined spaces. SCBAs are designed to provide the wearer with a supply of clean, breathable air, independent of the surrounding atmosphere. SCBAs are used in a variety of scenarios, including firefighting, hazardous material response, search and rescue operations, and industrial work in confined spaces.