In 1914 a chemist called Fritz Haber offered his knowledge to the German Army. He soon began experimenting with chlorine gas ...

Gas masks were issued to all children as a precaution ... breathe normally. Many wartime children have subsequently admitted that they struggled to take the drill seriously and that their masks ...

World War I soldiers used respirators to protect ... right which indicates this type of media can be played. Demand for gas masks is skyrocketing because of fears over West Coast wildfires ...