Garret Madison

“I definitely felt the benefits of using Altitudetech’s portable Altitude chamber as a training tool to aid in my endurance activities.  I believe the system would benefit any climber going to high altitude if used beforehand and in the proper manner, possibly eliminating time spent acclimatizing during the approach or while at base camp on long expeditions.”


- Garret Madison, Expedition Manager, Alpine Ascents International




2 ascents of Mt. Everest, (2006 and 2009)
136 ascents of Mt. Rainier
3 expeditions to Denali
5 expeditions to Aconcagua
1 expedition to Mt. Vinson
1 expedition to Ecuador’s Volcanoes (Cayambe & Cotopaxi)
1 expedition to Peru’s Cordillera Blanca
2 expeditions to Mexico’s Orizaba
6 ascents of Mont Blanc
1 expedition to Cho Oyu (Tibet)
1 expedition to Ama Dablam (Nepal)
1 US Army Ranger training exercise