+A gas mask is a device worn over the face to protect the wearer from inhaling airborne pollutants and toxic gases. It forms a sealed cover over the nose and mouth, using a [Respirator](/wiki/respirator) system to filter or purify incoming air, crucial in environments like [Chemical Warfare](/wiki/chemical_warfare) zones.
+## See also
+- [Hazmat Suit](/wiki/hazmat_suit)
+- [Personal Protective Equipment](/wiki/personal_protective_equipment)
+- [Biological Warfare](/wiki/biological_warfare)
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