This example is hilariously odd, and got me wondering how much oxygen production is needed to keep an adult human alive: 12–20 breaths/min 500ml breath volume (up to 6L total capacity! neat!)...
MOXIE will try to demonstrate that is possible on the surface of the red planet. But the amount of oxygen it could produce — less than ounce per hour — is tiny.
“We’re only making about enough oxygen to keep a small dog alive,” said Michael Hecht
This example is hilariously odd, and got me wondering how much oxygen production is needed to keep an adult human alive:
12–20 breaths/min
500ml breath volume (up to 6L total capacity! neat!)
That's 1.6464–2.744g O2/min (0.05808–0.096792oz O2/min), and 98.784–164.64g O2/hour (3.4845–5.808oz O2/hour).
I feel like I remember hearing somewhere that only 25% of the oxygen we breath is used in a single breath. If that's true that pushes our range to 0.871125–1.452oz O2/hour, however I imagine that might be rather uncomfortable or distressing.
There's a metric called VO2 Max, which is a measure of the maximum rate of oxygen intake for a specific person. This is kind of the opposite side of what you're looking for (you're looking for...
There's a metric called VO2 Max, which is a measure of the maximum rate of oxygen intake for a specific person. This is kind of the opposite side of what you're looking for (you're looking for minimum survivable, this is maximum consumption), but it might be helpful.
The average untrained healthy male has a VO2 max of approximately 35–40 mL/(kg·min).The average untrained healthy female has a VO2 max of approximately 27–31 mL/(kg·min). These scores can improve with training and decrease with age, though the degree of trainability also varies widely.
This example is hilariously odd, and got me wondering how much oxygen production is needed to keep an adult human alive:
That's 1.6464–2.744g O2/min (0.05808–0.096792oz O2/min), and 98.784–164.64g O2/hour (3.4845–5.808oz O2/hour).
I feel like I remember hearing somewhere that only 25% of the oxygen we breath is used in a single breath. If that's true that pushes our range to 0.871125–1.452oz O2/hour, however I imagine that might be rather uncomfortable or distressing.
Check my math, I didn't.
There's a metric called VO2 Max, which is a measure of the maximum rate of oxygen intake for a specific person. This is kind of the opposite side of what you're looking for (you're looking for minimum survivable, this is maximum consumption), but it might be helpful.
https://en.wikipedia.org/wiki/VO2_max#Effect_of_training