Online Pulmonary OxTox Calculator

[Shearwater]

Dr. Barbara Shykoff and the Rebreather Education and Safety Association bring us an online calculator for estimating pulmonary oxygen toxicity. Check it out: Calculator for Estimating the Risk of Pulmonary Oxygen Toxicity - RESA

 

[rjack321]

Many of us have dropped our ppO2 to the 1.0 to 1.2 range for longer or multiday dives. So it's a cool tool, but hard to equate to what I'm actually doing because I rarely use a ppO2 of 1.3+ for longer, repetitive dives.

 

[northernone]

I'm surprised this isn't getting more attention. Elephant in the room I'm missing?

Cameron

 

[coolwave3]

Maybe because it's not such a predictive tool after all.
To much variability between divers and even within the same person.

"The model is based on data with fairly high uncertainties when fewer than about 60 divers participated with the particular combination of durations and recovery times. (For binomial data, the uncertainty value includes the square root of the number of measurements in its denominator.) Further, pulmonary oxygen toxicity seems to have large interpersonal variability. (Figure 2 shows deviation of the recovery model from data used to fit it.) No guarantees are implied."

 

[lv2dive]

What Richard said. A lot of us use a much lower PPO2.

I'm surprised this isn't getting more attention. Elephant in the room I'm missing?

Cameron