Due to an avalanche and earthquake I have not been able to properly test the effect of the height tent. However, with a practice climb to 6100 meters I was less quickly out of breath as fellow climbers. My oxygen saturation was also slightly higher than the other climbers. Super! In terms of information and thinking along, you were
+ 8000m | Mount Everest
I did experience the effect of the height tent during the preparation. Although other factors also play a role, it seemed to me that I really digested acclimatization very well. But the earthquake prevented me from taking the ultimate test (climbing Makalu without oxygen). Which
Positive experience but effect I don't know yet. I am now in the Alps up to max 3600m; that is going well. Next to Nepal up to 8000+. How that goes I don't know yet.
I used your altitude tent again in July/August, for the reason of climbing Manaslu in Nepal (attempt 2) last September. It resulted in the successful ascent of the summit on 21/9/23! I did not suffer from headaches or lungs or otherwise for a moment. Well