In mountaineering, the death zone refers to altitudes above which the pressure of oxygen is insufficient to sustain human life for an extended time span. This point is generally considered to be 8,000 m (26,200 ft), where atmospheric pressure is less than 356 millibars (10.5 inHg; 5.16 psi).
In mountaineering, the death zone refers to altitudes above which the pressure of oxygen is insufficient to sustain human life for an extended time span. This point is generally considered to be 8,000 m (26,200 ft), where atmospheric pressure is less than 356 millibars (10.5 inHg; 5.16 psi).
Source: Wikipedia "Death zone" · CC BY-SA 4.0
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