WW2 Gas Mask, USN Mark IV 1-only

*CAUTION* WW2 Gas Masks are for collection or display. Not recommended for actual use with old filter. 

Made in 1943-44 to replace the Mark III. The Mark IV features large semi-triangular eye lenses, providing more field of vision. The size of the Mark IV is “U” which means “Universal.”

The Mark IV’s filter rests behind the head harness, following the design of the Navy MK II Head Canister gas mask designed in World War I.

The mask’s facepiece is made of a thick and sturdy black rubber. Inside the facepiece does not feature an oral/nasal cup, but an oral cone.