dry CO2 gas exposure produces skin flushing and absorption similar to CO2 water baths
CO2 gas baths (dry CO2 fumarole) produce nearly the same direct physiological effects as CO2 water baths, including skin flushing, with CO2 absorption promoted by wetting with water vapor.
What this means for you
Skin flushing is a sign of increased blood flow near the surface — the kind that brings more oxygen and warmth to tissues. The fact that dry CO2 gas can trigger the same response as a full water bath means you can get meaningful circulatory effects without submersion, which most people notice as a visible rosy glow and a sense of warmth spreading across the skin.
The published research
Carbon Dioxide Bath (Carbon Dioxide Spring)
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.