Gas mask

A gas mask is a kind of mask that fits over the face area and nose. It protects from poison gases and many other hazards in the air. They are often used in war.^[1]

The label NIOSH uses for gas masks, that show NIOSH has checked the gas mask.

Gas masks in the United States are checked by NIOSH.^[2]

Gas Mask Media

A World War I British P Helmet, c. 1915
Zelinsky–Kummant protivogaz, designed in 1915, was one of the first modern-type full-head protection gas masks with a detachable filter and eyelet glasses, shown here worn by U.S. Army soldier (USAWC photo)
Indian muleteers and mule wearing gas masks, France, February 21, 1940
A Polish SzM-41M KF gas mask, used from the 1950s through to the 1980s
German soldiers with gas masks, 1916
Display of gas mask for horses, used in the First World War. Photographed at the Bunk'Art Museum outside, Tirana, Albania.
Солдаты Духовщинского полка в противогазах Зелинского-Кумманта, 1916.
A British couple wearing gas masks in their home in 1941
Iranian soldier wearing a US M17 protective mask on the frontline of the Iran–Iraq War
Pioneers in gas masks. USSR, 1937