I have a feeling it will end up at similar grounds than SN regarding consistency. I mean, vastly peaceful for most everyone, but some will still react differently on a case to case basis.
Where we're at now : the current website speech is very polished. These are the extracted claims, summed up briefly :
* unconsciousness within minutes
* peaceful, painless and dignified death in 10-15 minutes.
* lose consciousness if oxygen concentration <12%
* depending on the respiration rate, unconsciousness within 2-3 minutes
* no shortness of breath, no panic, not any concern
* death to trigger when oxygen <7%
It sounds fantastically dream-like at this stage, but I regret slick and optimistic to encourage sales, out of unknowingly "not caring enough" like another member might say, through an intended act of simplification
If I only compare these claims to the past DeBreather monitored experiences (1999), there are annoyances to spot.
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Mean and extreme times to death higher than 10-15 minutes, but 25 minutes must be pessimistic due to the poor airtight mask seals in "nearly all cases" back at the period. Same goes for the large variability. If 10-15 minutes reveals itself to be close enough (+/-5 minutes) to the correct range, continuous perfect seal is key (right pressure applied by extra attachments for safety ...I agree about this consensus)
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Looking at the the only chart available, 5+ minutes to reach 12% 02 may be as well plausible as 2-3, which could go well along the "depending on respiration rate" comment of Richard. What if you react below (pink frame) ? Some more minutes
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The isolated 12% O2 reference of Richard is not a number to memorise. There could be a variety of threshold levels below triggering unconsciousness, depending on the person's physiological response
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About the 3rd case, "fighting mask at ~6% O2", how come ? Thought you were supposed to be unconscious at 12% O2 and about dead below 7%. According to the R2D site, it should have been impossible. That's because the theory is different (see above)
Another case (7th/9), describes a "perfect death - observer very pleased". It only goes to show the many possibilities. For many, not all, it could go flawlessly.
Regarding symptoms, the below experimenter makes descriptions of "light headed", "dizziness", "seeing stars after blackout", overall vastly peaceful.
https://sanctioned-suicide.net/thre...chke-is-selling-soon.31318/page-3#post-641324
We've seen before that theorical disturbed respiration (confirmed breathing increase, gasps practically) could happen around the +/-12%, mark, eventually before unconsciousness (6-10%)
Will it be close to a flat experience of "no nothing" perfection (Richard) every single time ? Time will tell
Until we get a database of death observations like SN, with specifications, every info should be taken with a grain of salt.