skin absorbs only ~0.4% of the oxygen the lungs take in at rest
Transcutaneous oxygen uptake contributes only approximately 0.4% of total pulmonary oxygen uptake at rest (total body tcJO2 ≈ 0.90 ml O2 min⁻¹ vs. pulmonary uptake ~230 ml O2 min⁻¹), confirming that systemic oxygenation requires respiratory delivery.
What this means for you
Your lungs do the heavy lifting when it comes to getting oxygen into your bloodstream — skin absorption plays a negligible role. This finding confirms that breathing enriched oxygen is the effective route for raising oxygen availability in the body, which supports energy production, mental clarity, and recovery at the cellular level.
The published research
Journal of Physiology (2002), 538.3, pp. 985–994 DOI: 10.1013/jphysiol.2001.013067
· 2002
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.