The closed-circuit type, also known as a rebreather, operates by filtering, supplementing, and recirculating exhaled … See more

SCBAs usually come with full-facepieces, but can also come with half-mask or mouthpiece in demand or pressure-demand mode, though use of mouthpieces are limited to escapes only, as of 1987.
Hoods and … See more

There are two major application areas for SCBA: firefighting, and industrial use in confined spaces.
For firefighting, the design emphasis is on heat and flame resistance above cost. SCBAs des… See more

In the United States and Canada, SCBAs used in firefighting must meet guidelines established by the National Fire Protection Association, NFPA Standard 1981. If an SCBA is labeled as "1981 NFPA compliant", it is design… See more

SCBA is intended to be personal protective equipment, but its use is not without cost. The weight of the unit and work of breathing affect the work capacity and agility of the wearer, and the full-face mask, while protecting t… See more

• NIOSH, regulator of SCBAs in the United States – US federal government agency
• Glossary of firefighting terms – List of definitions of terms and jargon used in firefighting… See more