This ground up design was inspired by dylanaukes (https://makerworld.com/en/models/21643#profileId-19791) for their use of LV-H128-RF / LV-13EU-RF filters. I prefer these filters for their HEPA + Activated-Carbon filtration properties, readily available and their ideal size for the task.

The filter housing is magnetically attached with strong 8x3mm magnets to the back panel so they don't shift. I use two; one over the Chamber fan exhaust (permanently in place) and another temporarily covers chute / electronics exhaust grill while printing strong VOC materials (i.e ABS / ASA). The later will block / limit poop chute capacity but a reasonable compromise for that print, just remember to remove and clear chute tunnel afterwards.

I recommend attaching some thin felt (or paper masking tape) on the attach surface to improve the seal. I made it functional and quick but will get around to adding a TPU seal at one stage.

BOM:

• 1xFilter (LV-H128-RF / LV-13EU-RF) - https://www.amazon.com.au/dp/B09TSRCPJD?psc=1&ref=ppx_yo2ov_dt_b_product_details
• 10x Magnets 8 x 3mm - https://www.ebay.com.au/itm/114105633644?var=414692813191

UPDATE (3-May-2024): Updated model and profile to include TPU gasket, added extra build plate for single or double filter housing and filter.