I wish there'll be more judgement of filters in this manner. Bulb lit up and figured how to do something like it without damaging the filters. Will beg chemist friends to source me some filter paper.
My quick take is:
1. It seems that all the cellulose types perform almost the same.
2. Synthetic filter media. After the top 3 filters, partial synthetic media won't cut it.
3. A million thanks to that author dude. Awesome dude.