120mm fan hood/filter holder.

A filter holder for 120mm fan, probably has some other uses as well. I attached a coarse filter with a rubber band. Somewhat optimized for printing, 2 perimeters with Arachne, should result in fast printing (~2 hours on bambu x1) and only uses ~50g of filament.

Geometrically somewhat based on https://www.printables.com/model/221856-fan-hood-for-120mm-fan-and-4-duct-w-tpu-seal but this is completely new design.