3D Printer Enclosure Fan With Filter

This provides and intake and exhaust that bolts to a 120mm computer fan. It accepts a 4" carbon/HEPA filter. In theory, this should remove particulates and fumes when exhausting an enclosed 3D printer. The filter is held into the housing using any shim (cardboard, plastic, etc) inserted between the frame and the filter. I would recommend using foam tape between the fan side of the housing and filter. For better performance, you can seal the housing to the fan using caulk, RTV, glue, etc. I have included the specific filter and fan below.

120mm Computer Fan with AC Plug Fan https://www.ebay.com/itm/395706486247
Nispira 3-In-1 True HEPA Carbon Filter Replacement for Osimo A2 https://www.ebay.com/itm/266261559132

Disclaimer: This product is not tested nor guaranteed to make the air safe. This is something I made for personal use and you can use it at your own risk.