| 摘要 |
The invention relates to a hearing protection device (10) comprising a shell to be worn at least partially within a user's ear canal (14), wherein the shell is provided with an acoustic filter element (24) for attenuating sound comprising open-pore porous material (28), wherein the shell is designed such that the acoustic filter element is open towards ambience and towards the user's ear canal, and wherein the acoustic filter element is integral with the shell.
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