The breathing performance of regulators is a measure of the ability of a breathing gas regulator to meet the demands placed on it at varying ambient pressures...

A diving regulator or underwater diving regulator is a pressure regulator that controls the pressure of breathing gas for underwater diving. The most commonly...

Open-circuit industrial breathing sets are filled with filtered, compressed air. Typical open-circuit systems have two stage regulators. The first stage reduces...

required for surface-supplied diving. The essential aspect of surface-supplied diving is that breathing gas is supplied from the surface, either from a specialised...

A breathing apparatus or breathing set is equipment which allows a person to breathe in a hostile environment where breathing would otherwise be impossible...

the ambient pressure. The breathing performance of regulators is a factor when choosing a suitable regulator for the type of diving to be undertaken. It...

elastomers (rubber) with good performance in high partial pressures of oxygen. Preferred material for o-rings in diving regulators for oxygen service. flush...

be increased (and better envisioned) by breathing through a long tube, such as a snorkel. Although one end of the snorkel is open to the air, when the...

with breathing gas at ambient pressure. regulator changeout regulator swap-out Scuba emergency skill of swapping a correctly functioning regulator with...

altitude breathing apparatus is a breathing apparatus which allows a person to breathe more effectively at an altitude where the partial pressure of oxygen...

diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore...

collapse, as occurs in obstructive sleep apnea, or to reduce the work of breathing in conditions such as acute decompensated heart failure. CPAP therapy...

apnea – Disorder involving pauses in breathing during sleep Time of useful consciousness – Duration of effective performance in a hypoxic environment Tumor...

change during the breathing cycle. Gas in the breathing circuit is at ambient pressure, and stored gas is provided through regulators or injectors, depending...

is a type of breathing apparatus, a class of medical technology that provides mechanical ventilation by moving breathable air into and out of the lungs...

Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing.[citation needed] Asphyxia causes generalized...

International Diving Regulators and Certifiers Forum, previously International Diving Regulators Forum. A voluntary group of diving regulators and certifying...

ANSTI machine ANSTI breathing simulator The ANSTI breathing simulator is a machine used to measure the performance of underwater breathing apparatus under...

dosage of oxygen to the brain. The ANSTI machine is used for automated testing of underwater breathing apparatus. Breathing performance of regulators – Tests...

the enclosed space to stimulate breathing. It assists breathing when muscle control is lost, or the work of breathing exceeds the person's ability. Need...

mounted on the machine. The performance of the vaporizer does not change regardless of whether the patient is breathing spontaneously or is mechanically...

rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's exhaled breath to permit the rebreathing (recycling) of the substantially...

deep breathing without waste of oxygen with use of simple fixed flow regulators. An early 1919 high-altitude oxygen system used a vacuum flask of liquid...

The mechanism of action is variously described with reference to the venturi effect or Bernoulli's principle. However, a fixed performance oxygen delivery...

his family. Another newly discovered Australian animal – a species of air-breathing land snail, Crikey steveirwini, was named after Irwin in 2009. Irwin...

Such suits are often combined with self-contained breathing apparatus (SCBA) to ensure a supply of breathable air. Hazmat suits are used by firefighters...

a device that contained elements that allowed breathing through a nose and mouthpiece, inhalation of air through a bulb-shaped filter, and a vent to...

reassess the patient's breathing. If there is no breathing, or the patient is not breathing normally (e.g., agonal breathing), the first aider would...

survey of animal and plant life on Earth. Attenborough was a senior manager at the BBC, having served as controller of BBC Two and director of programming...

breathing gas. Breathing gases for hyperbaric use have been developed to improve on the performance of ordinary air by reducing the risk of decompression...