Mt Whitney Zone Forums General Discussion Supplemental oxygen can for altitude sickess?

7,000 meters is about 23,000 ft. I think humans can benefit from oxygen supplementation a lot lower elevation than 23,000 ft. Personally, I experience significant benefits from canned O2 starting around 10,000-12,000 ft, depending on how much time I've had to acclimate from sea level. If I use it, I typically wait as long as I can because the supply is limited. I learned to bring a backup can.