Hygienic anti-noise ear plug comprises receptor and support base with opening integral with pipe having lugs taking spongy cover, pipe receiving interchangeable filter

摘要

The ear plug, incorporating a selective filter (1) is composed by a receptor and support base (2a) having in its median part an opening (4) integral with a pipe (3) which is integrated into the base and has lugs (7) which take a spongy cover (8). The pipe receives an exchangeable filter (6) chosen according to the nature of the ambient sound.