The Stratosphere ATC is the world's first commercially engineered pressure vessel for human occupancy (PVHO) built for environmental training — real hypobaric altitude, on demand, in your own facility. Climb to 33,000 feet without leaving the room.
Stratosphere is far more than exercise equipment. It's a true altitude environment — less pressure, less oxygen, real physiological ascent and descent — paired with exercise inside the chamber for compounded adaptation.
Where treadmills and altitude tents work at the margins, the ATC manipulates the actual barometric pressure around your body. That's the difference between reading about the mountains and living on them.
Most "altitude training" products don't change pressure at all. Here's how the landscape actually breaks down.
Altitude tents & mask systems
HBOT oxygen chambers
Stratosphere ATC
Intermittent exposure to real altitude engages the body's native oxygen-sensing machinery: HIF stabilization turns on hundreds of genes within 24–48 hours, EPO rises within hours, and red-cell mass, oxygen kinetics and acclimatization follow with sufficient dose. Here is where the published science is strong — and where it is still early.
Bobby Williams has spent thirty years in health and wellness — guiding climbers in the Tetons, on Mount Whitney and in Yosemite — and built Stratosphere to bring the mountain to the athlete. Age 60. VO₂max 63.
Meet the team
Explore how the chamber works, dig into the science, or see the engineering behind the build.