Dräger Safety Ag&co. Kgaa

Werner Lange

Achim Volmer

Dirk Feil

Christoph Schmidt

Martin Weisgerber

A gas mask is provided with a mask body, which is designed to cover the face of a user, and with an opening in the mask body, which is closed by a speech diaphragm () in a gas-tight manner. A funnel () is directed toward the speech diaphragm with an opening angle in the range of 20&#xb0; to 90&#xb0;. The funnel () is arranged in front of the speech diaphragm in the interior space of the mask body in order to focus sound waves onto the speech diaphragm.

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Bad Segeberg, Germany

Werner Lange