Extension for Chamber Filter Duct
made of TPU
https://www.printables.com/model/531834-scrubby-for-bambu-lab-x1c-x1-p1p-p1s-chamber-filte
after adding the choke it is quieter
https://www.printables.com/model/1137369-bambu-p1p-magnetic-exhaust-muffle
The author marked this model as their own original creation.