Page:Popular Science Monthly Volume 91.djvu/361

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New Fashions in Gas Masks

���The mask which is in use at the present time by the English and the French. To the sol- dier in the trenches the gas mask is as important as his rifle

��Worn for gases which are poisonous but which do not affect the eyes. The mouth and nose are pneu- matically sealed by a rubber-faced cushion

��Impervious to smoke and flame, the mask is made of asbestos and is worn by rescue squads in fires and explosions. An entire suit of asbestos accompanies it

���Mask used by our submarine sailors when salt water reaches the electric storage batteries and chlorine gas is generated in consequence

��Worn for protection against chlorine gas by workmen who are constantly exposed to the gas in chlorinating plants

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