Carbon Filter
https://www.thingiverse.com/thing:663864
Hepa Filter Holder
https://cults3d.com/en/3d-model/tool/hepa-filter-holder-for-120mm-fan-86889-style-filters
120mm TPU Gasket (I used Creality TPU from Amazon:
https://www.printables.com/en/model/526692-120mm-fan-gaskets
120MM to 4inch Duct from
https://www.thingiverse.com/thing:6574612/files
Some Amazon Parts I use: (aff links)
Carbon Filter pack:
HEPA Filter Pack (any 86889 HEPA will work/fit):
Lower Power (Quieter) 25mm Noctua Fan:
Higher Power (louder) 38MM Fan:
DC to Fan Adaptor
USBC to DC (if you want to power it via USBC)
Bolt kit to hold it all together
https://amzn.to/3KeqLxi
The author marked this model as their own original creation.