Keeps your filament dust-free before it enters the extruder. 
The filament cleaner requires 2 × Ø4×2 mm or Ø5×2 mm magnets.
The hinge has been repositioned away from the body to ensure a more consistent closing action.
The wall height near the hinge has been slightly lowered, and a small fillet was added to the outer edges to reduce pressure buildup and prevent the cleaner from opening on its own.
A small rib near the outlet applies additional pressure on the sponge against the filament in that area, improving dust collection.

Printing:

Print at a layer height of 0.15–0.16 mm with 100% infill. Use a piece of filament as the hinge shaft.

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Note: 

A print profile with an integrated hinge shaft has been uploaded by another user. I reviewed it, and the hinge turned out to be loose, unreliable, and prone to falling apart after a short period of use. Please avoid using or rating it, as I cannot support or take responsibility for this profile.