You can download and print modified parts here from Printables and rest of needed parts could be downloaded from official Voron repository https://github.com/VoronDesign/Voron-Trident/tree/main/STLs/Exhaust_Filter.
This project is available on my GitHub together with Fusion360 source: https://github.com/mkelnar/voron-exhaust-mod where you can download modified and original Voron parts together from one place.
Use the recommended print settings as for any other Voron part: https://docs.vorondesign.com/sourcing.html#print-settings
This smart filament sensor is mounted internally on top shell of re-designed exhaust body with three screws which comes in package with sensor. There is prepared also hole for fan wires so all wires from exhaust filter could be led together internally over exhaust filter grill to channel of aluminium extrusion and then down together with cables from gantry.
Wires from fan goes through hole and then over the adhesive cable clips on wall.
Together with exhaust fan housing redesign I've decided to redesign also housing mount. Instead of two independent mounts which are not easy to screw on proper place, here are both side mounts solidly connected. For design purposes a small canopy has been added to cover edges and spaces between filter grill, aluminium extrusion and filter housing.
Here is rendered preview on 3D model.
The author remixed this model.
This modification of original exhaust fan housing for Voron Trident (possibly also for 2.4) has integrated filament sensor module SFS v2 made by Bigtreetech.