Is it possible to get Oxygen Toxicity with LiveO2 or ExtremeO2?

Oxygen Poisoning

In 1947 the British military discovered that oxygen could be toxic,Oxygen Toxicity, as a result of underwater research. The same research discovered that Nitrogen (78% of air) caused Nitrogen Narcosis.

In simple terms, oxygen toxicity only occurs under extremely elevated oxygen partial pressures.

This research determined that super-concentrated oxygen, 18x normal (impossible without military-grade equipment or deep diving), produces oxygen poisoning.

  • Ardenne’s protocols use oxygen at far less than these levels, and have never been reported to cause harm or produce oxygen toxicity symptoms, in any person.
  • Athletic protocols, have over a 75% safety margin; and non-athletic protocols have a 95% safety margin. A detailed analysis follows.

According to the research documentation, oxygen toxicity effects cannot occur with Oxygen Multstep Therapy or LiveO2 systems because they cannot produce high enough levels of oxygen for a long enough period of time to produce these effects.

The Summary

If you want to skip the details, the results below come to 17.9 atmospheres, or breathing air under water of 538 feet. This is extreme.

For comparison, Ardenne’s pregnancy support protocol uses about 4 atmospheres of oxygen for 15 minutes during labor preceeding childbirth. This is about 125 feet of water breathing regular air, for a short period of time.

His quick protocols use about 60% oxygen for 15 minutes. The LiveO2 system supports Ardenne’s highest level protocols for athletic training and labor.

The highest oxygen levels that any OMST system are capable of are less than 1/4 the oxygen partial pressures known or ever reported produce any oxygen toxicity effect in any person. There are no reports, over the past 30 years, that any of Ardenne’s protocols have ever caused any sign of oxygen toxicity in any person.


Oxygen at sea level is 1 atmosphere. The experiments documented in these publications showed oxygen toxicity at 17.9 atm produced escalating symptoms, as indicated in this table:

  • The pressure at 90 feet = (1 atm + *(.445 lb/ft * 90 ft) / 14.5)) = 3.76 Atm
  • But this was Pure Oxygen, too. Normal air is 21% oxygen, so pure oxygen is 100 % / 21% is pure oxygen in 4.76 atmospheres of oxygen partial pressure
  • 3.76 atm * 4.76 atm = 17.9 atmospheres of oxygen

So this table, shows results for extremely high oxygen concentrations. Note that even at these extremely elevated levels, the early presentations, less than 15 minutes, have minor symptoms:

  • Lip Twitching
  • Tingling of Skin
  • Vertigo
  • Hiccup
  • Nausea
Oxygen Poisoning at 90 ft (27 m) in the Dry in 36 Subjects in Order of Performance – K W Donald1
Exposure (mins.) Num. of Subjects Symptoms
96 1 Prolonged dazzle; severe spasmodic vomiting
60–69 3 Severe lip-twitching; Euphoria; Nausea and vertigo; arm twitch
50–55 4 Severe lip-twitching; Dazzle; Blubbering of lips; fell asleep; Dazed
31–35 4 Nausea, vertigo, lip-twitching; Convulsed
21–30 6 Convulsed; Drowsiness; Severe lip-twitching; epigastric aura; twitch L arm; amnesia
16–20 8 Convulsed; Vertigo and severe lip twitching; epigastric aura; spasmodic respiration;
11–15 4 Inspiratory predominance; lip-twitching and syncope; Nausea and confusion
6–10 6 Dazed and lip-twitching; paraesthesiae; vertigo; “Diaphragmatic spasm”; Severe nausea