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The H.S.S. Gerät 1924 was the greatly improved model of the slightly outdated H.S.S. Gerät 1916. And was one of the first rebreathers designed in Germany after the First World War.
Occasionally it was used with Leder B-Maske facepieces.
External information Edit
In Hungary the army used it as the 24M.
- Tűzrendészeti Közlöny (book-1930)