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Q&A Is there a breathing technique to conserve bottled oxygen?

We all know when people run out of O2 up there, trouble follows. Is there a breathing technique to get more mileage out of bottled oxygen? Let's stick to the basic scenario of the need of bottled...

1 answer  ·  posted 8y ago by WedaPashi‭  ·  last activity 6y ago by System‭

Question mountaineering high-altitude