I wanted to use the carbon pellets I had for the BentoBox v2 for the internal carbon filter and saw @TechwithKramer's model, but the model took almost 3-4 minutes just to slice in Orcaslicer/Bambu Studio and a staggering 2 hours+ to print even with the optimised settings provided.

So I decided to remove the holes and use the slicer infill trick instead to drop it down to around 40 minutes to print (35 minutes on ludicrous) while making the mesh much more reliable to print.

Recommend to print in PETG or ABS/ASA for heat resistance.

======READ BEFORE PRINTING OR ELSE YOU WILL END UP WITH A BOX!======

Settings I changed while using Generic PETG in Orca/Bambu Studio:

Quality 0.20mm Standard @BBL X1C (0.24mm should be fine too)

Settings

Quality:

Only one wall on top surfaces = OFF/Not Applied

Strength:

Wall loops = 5 or 6 (depends on infill pattern)

Top shell layers = 0

Bottom shell layers = 0

Sparse infill density = 25% or higher

Sparse infill pattern = Aligned Rectilinear OR Triangles OR Honeycomb (AKA Bestagons) OR Grid.

Infill/wall overlap = 20%

Infill direction = 0 or 90 degrees

Any infill that doesn't cover the holes basically all work, feel free to play around with the density with different patterns depending on your carbon pellet sizes.

Added a piece of fabric tape on the side for grip and another tiny piece of electrical tape to keep the lid shut.

Happy printing!