WWI gas mask Bullock Texas State History Museum

Gas masks were developed in WWI to protect soldiers from the effects of chloride gas. This gas mask was worn by 21 year old Levi Nathan Cox from Clarendon, Texas.

Shellie Loyd Webb Ray City History Blog

Texas Oil & Gas Museums - American Oil & Gas Historical Society

German soldiers of WW2 stock image. Image of equipment - 10974869

Since gas masks were unable to protect soldiers from mustard gas, what other ways did the soldiers protect themselves from exposure to mustard gas during World War I? - Quora

The History Behind the Invention of Gas Masks

Louisiana Military Museum Veterans Heritage Festival in Abbeville

History

Bette Horstman, 1st Lieutenant, U.S. Army Medical Corps, Exhibits, Pritzker Military Museum & Library

WWI America makes final stop at the Bullock Museum

American University Experiment Station: Mustard Hill - Theo Emery

Museum gas mask hi-res stock photography and images - Alamy