DIVING USING HYDROGEN-BASED RESPIRATORY GAS MIXTURES


Mircea DEGERATU1, Sergiu IONIȚĂ2

Abstract. When diving to depths of over 200 m, there are two factors that limit the effectiveness of divers using helium-based mixtures, namely: High Pressure Nervous Syndrome (HPNS) due to the neurological effects of pressure and ventilatory limitations due to the density of such mixtures (increased energy loss through the respiratory system). To effectively counteract the effects of these two limiting factors, hyperbaric specialists considered  necessary to use hydrogen as a component of hydrogen-based mixtures, such as the binary HYDROX (hydrogen-oxygen) and ternary HYDRELIOX (hydrogen-helium-oxygen) mixtures.

 Keywords: commercial diving, saturation diving, breathing mixture,  hydrogen

DOI       10.56082/annalsarscieng.2026.1.5

Read full articleDYNAMICS OF THE ΛCDM MODEL OF THE UNIVERSE FROM THE PERSPECTIVE OF THE DYNAMICAL SYSTEMS THEORY                                                                                                                         Download articleDYNAMICS OF THE ΛCDM MODEL OF THE UNIVERSE FROM THE PERSPECTIVE OF THE DYNAMICAL SYSTEMS THEORY 

1Prof., PhD, Eng., Dept. of Hydraulics and Environmental Protection, Technical University of Civil Engineering Bucharest, Academy of Romanian Scientists (mircea.degeratu@yahoo.com)

2Professional diver, certified in the U.S.A. at Commercial Diving Institute of New York, was employeed by some prestigious submarine intervention companies specialized in underwater interventions at offshore oil installations in the Gulf of Mexico. (sergiu.ionita@rdslink.ro).

PUBLISHED in

Annals Academy of Romanian Scientists Series on Engineering Sciences

Volume 18 no 1, 2026


ISSN PRINT 2066 – 6950

ISSN ONLINE 2066 – 8570