Wikipedia

Gas mask

mask protecting from toxic molecules and particles

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]

A soldier wearing a gas mask
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]

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References

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  1. ↑ Patton, James. "Gas in The Great War". University of Arkansas School of Medicine.
  2. ↑ "STANDARD APPLICATION PROCEDURES FOR THE CERTIFICATION OF RESPIRATORS" (PDF). NIOSH. January 2001. Archived from the original (PDF) on 2003-03-19.
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