Breathing set

A breathing set or breathing apparatus is equipment which allows a person to breathe in a hostile environment where breathing would otherwise be impossible or hazardous, and may refer to:

• Scuba set, any breathing set that is carried entirely by an underwater diver and provides the diver with breathing gas at the ambient pressure
• Rebreather, a breathing apparatus that absorbs the carbon dioxide and adds oxygen to a user's exhaled breath, allowing unused oxygen and diluent (if present) to be recycled
• Surface-supplied diving equipment (SSDE), diving equipment supplied with breathing gas using a diver's umbilical or airline from the surface, such as a boat or platform
• Self-contained breathing apparatus (SCBA), used out of water, worn by rescue workers, firefighters and others in contaminated, toxic or hypoxic atmospheres
• Space suit, a garment worn to keep a human alive in the harsh environment of outer space, primarily the vacuum and temperature extremes
• Underwater breathing apparatus is any breathing apparatus intended to allow the user to breathe underwater, and includes open circuit scuba, diving rebreathers and surface supplied diving equipment

"Breathing apparatus" redirects here. For part of an animal, see respiratory system.

See also

• Breathing mask (disambiguation)