Filament cleaner/cooler box

This is a project I work on.
The goal is to have a filament cleaner box and cool the filament.

FilamentBox
The middle box is for a little sponge. You can use any soft sponge you like to. It will remove some dust, but it will also act as a barrier for the air.

The air box is made to inject air in the box. This air will be forced up in the filament tube. This will cool the filament.
The small hole shall be down to the middle part.

The top part is for the filament tube. it sits on to