The Black Veil Respirator. First used by the British Empire in late April/ early May 1915. After the first successful use of poisonous gas on April... | By The Dayton Doughboy | Facebook
Orinasal mask - Wikiwand
The first world war scientists who gave their lives to defeat poison gas | Chemistry | The Guardian
Oxford Medicine and the First World War | Archives and Manuscripts at the Bodleian Library
Gas mask - Wikipedia
John Scott Haldane - Linda Hall Library
Best Gas Masks (Review & Buying Guide) in 2023 - Task & Purpose
John Scott Haldane (Author of Organism and Environment as Illustrated by the Physiology of Breathing)
Artefact of the Week – WWII gas mask, c. 1939-1945 AD. – Cardiff University SHARE eJournal
Who Invented the Gas Mask? - WorldAtlas
To Protect Allied WWI Soldiers, This Researcher Tested an Early Gas Mask on Himself | Smart News| Smithsonian Magazine
Artefact of the Week – WWII gas mask, c. 1939-1945 AD. – Cardiff University SHARE eJournal
John Scott Haldane | British physiologist | Britannica
Poison Gases in the First World War
Hurrah for the all-conquering Haldanes of Cloan
John Scott Haldane - Linda Hall Library
Hypo helmet - Wikipedia
To Protect Allied WWI Soldiers, This Researcher Tested an Early Gas Mask on Himself | Smart News| Smithsonian Magazine
Gas mask - Wikiwand
W.W.1 Gas Mask Face Mask by John Straton - Pixels
How Gas Masks Were Made in World War One (HD and Color) - YouTube
World War One: Scientist John Haldane tested gas on himself - BBC News
John Scott Haldane - Wikipedia
