OP
I was not trying to be a jerk , all this information is very interesting and still wonder if they scrub the co2 . The link does not mention it .
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Hmmm, out of curiosity, are O2/CO2/CO etc levels actually being measured or it is assumed that with so high replacement rates air quality is always good???Supposedly this results in all cabin air being replaced roughly every three minutes (precise details being aircraft-specific etc obviously)
But the partial pressure will not be.The air you breath will always be 21% oxygen
why would you even need to measure? what would be the point? its not like you can do anything about a "high co2" measurement at 30,000ftHmmm, out of curiosity, are O2/CO2/CO etc levels actually being measured or it is assumed that with so high replacement rates air quality is always good???
Where is @DandyDon when you need him
The partial pressure will be 21% of the total pressure.But the partial pressure will not be.
It will indeed be 21% of the total pressure. And at 33 feet the oxygen is still 21% of the total pressure. Which doesn't help us stay alive at high elevations or avoid oxygen toxicity at deep depths.The partial pressure will be 21% of the total pressure.
At 8000 ft the total pressure is 75262 Pa (0.75 bar).
So, the pp of O2 is 0.21 bar at sea level, and 0.152 bar at 8000 ft (inside the aircraft cabin).