Georges Dreyer

Dreyer was born in Shanghai, where his father was stationed as an officer with the Royal Danish Navy.

[1][2] Dreyer specialized in the fields of bacteriology and virology, performing extensive studies involving vaccines and immunization.

During World War I, he developed a device that was capable of administering low oxygen mixtures to test the effects of hypoxia in aviators.

He also developed a successful oxygen delivery system, and was responsible for installation of the first low-pressure chamber at a British learning institution.

When George Ingle Finch was preparing for the 1922 British Mount Everest expedition he was advised by Dreyer about the likely need for additional oxygen when climbing at high altitude.