Why not just live at altitude?
It’s hard to find a place at 15,000 feet to live. (Maybe in a tent on a peak in the Andes.) How much time do you want to spend in a tent out in the elements? Living at altitude creates the benefits of altitude acclimatization, but optimum muscular conditioning competitors should work out at low altitudes. The key is to separate sleeping and training altitudes. With our chambers you sleep at 15,000 feet and get up in the morning and train at a your ambient altitude.