HEPA Filters are a bit more important than I thought they were

I designed a filter addon for the Zero but I only had anecdotal evidence that the smell of ASA was all but gone with the filter on the printer, turns out the filter is catching quite a lit of particles!

Filter on the left is a new clean filter, filter on the right has been on the printer for 4 or 5 days, it was printing mostly grey/black till today when I loaded up red ASA, the colour of the filter speaks for itself… this is only after 2-3 hours, maybe 150-200 grams and yes, the exhaust block off plate is installed!

The filament is iSANMATE ASA from Amazon.

Filter addon is here if anyone would like to print one:

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On my list, thanks.

Let me know how they fit, I will make adjustments to the model if they don’t fit well.

I’ve ordered this style that have a carbon cartridge, the Amazon listing says they are compatible with AV-P108 Air Purifier, keen to see how they work out.

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If the measurement from you first pic are correct, then 79mm is too small.

EDIT: I just saw that you’ve updated the model.

I just ordered the filters I posted above.
So I’ll replay next weekend with my thoughts.

EDIT: Printed

Filters came in today.

I’m not sure about using the foam filter, worried the heat & fan will blow it into pieces all over the place.