CO₂ gas exposure triggers skin flushing response at specific temperature and humidity levels
CO2 gas bath-induced skin flushing requires higher temperatures than CO2 water baths and is dependent on relative humidity, with constant flushing occurring in a defined temperature-humidity range.
What this means for you
Skin flushing is a sign that blood vessels near the surface are opening up — a response linked to better circulation, warmth, and nutrient delivery to the skin. When CO₂ and moisture levels hit the right range, this response becomes consistent, which may support a more noticeable glow, easier recovery, and improved surface-level circulation over time.
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.