Editor’s Note, May 11, 2022: This article previously suggested that John Haldane was the first person to invent a gas mask. In fact ... many Allied soldiers suffocated, unprotected, during ...

In training, soldiers were required to hold their breath for six seconds while the mask was being adjusted. It was explained to them that four breaths of the deadly chlorine gas was sufficient to ...

The gas could affect someone in just a few minutes so protective masks were given to all soldiers. Many soldiers suffered from the effects of gas attacks for the rest of their lives. The poet ...

Petty’s medical facility was caught in the line of fire. Petty himself was knocked down by shrapnel and his gas mask destroyed. Ignoring his wounds and tearing off the useless mask, he continued ...

More than a century after he was killed fighting in World War I, an unidentified American soldier will be reburied ... from an American canteen cup. A gas mask. Buttons off an American uniform." ...

The first major gas attack in war occurred 100 years ago this weekend, in what is now Poland. Gas soon became a routine feature of trench warfare, horrifying soldiers more than any conventional ...