This is just an idea which I'm considering, which modifies a filter I'm currently using in my enclosure, but changes the airflow to recirculate the filtered air back into the printer. It utilizes a HEPA filter for a vacuum cleaner and a box that can hold some activated carbon. It's just a rough model and it was done to see if I could fit it on the back of the Voron printer. I could use one of the existing designs, but I want to have a HEPA filter in addition to the carbon filter (to try and filter some of the ultrafine particles as well as the fumes). The design is very roughed in right now, none of the fancy parts are even started, and it may be too large to consider, but will probably work on it some more before I decide if it's worthwhile.
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