I'd like some input on using cans of oxygen in case of altitude sickness hiking Mt Whitney...referring to those portable cans such as Boost Oxygen.
I bought one when climbing Mt Fuji (they have them at all the shops around the base and 5th station).
Used it a few times and it seemed to give me a kick (don't know if it was physical or psychological).
I think I had a can in my pack on my first Whitney climb and never used it.
Never carried it any other times.
If you're having a real serious reaction to the altitude it probably won't do much good (best solution is to descend as fast as you can), but it could give you a very short burst of energy.
