Glossary of breathing apparatus terminology

A respirator, medical ventilator, or resuscitator may also be considered to be breathing apparatus.

Equipment that supplies or recycles breathing gas other than ambient air in a space used by several people is usually referred to as being part of a life-support system, and a life-support system for one person may include breathing apparatus, when the breathing gas is specifically supplied to the user rather than to the enclosure in which the user is the occupant.

All terms are defined in the context of breathing apparatus, and may have other meanings in other contexts not mentioned here.

There are also many terms which are specific to underwater breathing apparatus (UBA) that may be found in the Glossary of underwater diving terminology.

See: venturi maskSee smoke hoodSee:Face maskSee: Helium reclaim systemSee: orinasal mask