CAD Design for Protective Earbud

I need a CAD design for a specialized earbud intended for use as personal protective equipment (PPE). The design should include a filter housing for an acoustic filter.

Essential requirements for the filter housing:
- Water resistance
- Dust resistance
- Replaceable filter element

Ideal skills and experience:
- Proficiency in CAD software
- Experience in designing for water and dust resistance
- Understanding of acoustic filter integration
- Background in designing consumer electronics or PPE

Looking for a detailed, durable, and functional design.


I have measurements and design sheet already just need the CAD File.

NDA or NDD required to be signed prior to commencing any transfer of files