X2D/P2S Active Carbon and HEPA Filter

The model is a refillable air filter as a replacement for the original internal air filter of the Bambu Lab P2S and X2D with an additional HEPA filter stage to also filter particles not filtered by the active carbon.

Any commercially available activated carbon pellets can be used. The only requirement is that it must be acid‑free.

With the filter, VOCs generated during printing are captured. Thanks to the HEPA filter stage it filters even more particles than plain active carbon.

Optionally, a filter fleece up to 3 mm thick can be used to keep fine activated‑carbon particles from escaping the filter. This isn’t strictly necessary but it is recommended to avoid contamination with carbon dust. The less finer the particles in your activated carbon are, the less critical the filter fleece becomes.

Print and Assembly Instructions:

It is recommended to use PETG or ABS/ASA for this filter.

1.  First print all three parts (only print the plate for the filter size you bought)
2.  Put the inlay in the outer shell which holds the HEPA filter and push it in (it should be a tight fit)
3.  Add the active carbon
4.  Add the (recommended, but optional) filter fleece
5.  Close the filter with the lid
6.  Install the HEPA filter
7.  Replace the stock filter with the new one

Sourcing of the Parts:

Example Links for the HEPA filter:

• Filter Size 135x50 mm (Amazon) - recommended Size
• Filter Size 128x48 mm (Amazon)

Example Links for activated Carbon Pellets:

• Meltbro (Nevermore Active Carbon, this is what I am using)
• Amazon (alternative if you want to source from amazon, but quality of Nevermore Carbon is best)

Example Link for filter fleece

• Amazon (this is what I am using)

Other models:

• P2S/X2D replacement filter - active carbon only, without HEPA
• P2S/X2D active carbon filter for the original exhaust fan kit