CO2 Through Skin Tissue
Hot vater bubbles open up skin pores
By John Melendez, published Jul 24, 2007

Transfer of oxygen, nitrogen, and carbon dioxide through normal adult human skin
Journal of Applied Physiology, Vol 49, Issue 3 438-443, Copyright © 1980 by American Physiological Society T. N. Hansen, Y. Sonoda and M. B. McIlroy
Skin gas tensions and resistances measured by mass spectrometry in adults
Journal of Applied Physiology, Vol 56, Issue 5 1431-1435, Copyright © 1984 by American
Physiological Society
R. C. Targett, O. Kocher, K. Muramatsu and M. B. McIlroy
Carbon Dioxide Bath (Carbon Dioxide Spring) -->PDF
K.L. Schmidt (Center for Clinical Research in Rheumatology, Physical Medicine and
Balneotherapy; Bad Nauheim, Germany)

CO2 boubles on forearm immersed in Carbon Dioxide enriched water

Relationship of flushing of skin, temperature and relative humidity in CO2 bath (at least 80% volume of CO2; 15 min)
Black dot=Flushing of skin
White dot=no flushing of skin