comments:
In an ideal scenario, you want a HEPA filter. Something like this, a small 4” x 4” HEPA filter would probably work great for the size setup you have: https://www.amazon.com/Nispira-Carbon-Replacement-Compatible-Purifier/dp/B0BJBFYJR6/ref=mp_s_a_1_3?adgrpid=184751616405&dib=eyJ2IjoiMSJ9.tSNXlJwJhpRYqgDp7ZFcGKB-VYbrECljkCorX34RXnVr1FNBTExc39reNl8e70J_xkm9FNbhj-AJexx-b7thLHl04LLp0Wn3qCGjC9asWqPbOcF5dd66lmCexTMipOJfDD5NBXm4yffNe54Etin_mKXkwhha1NKh4VYmcSTDaP6GLOpnrgCbxa6Vz-jcWsjCEsPJhU4nbsbtnO8SmIZWcg.7V8NaDBZImJP3fFe1trwec-sOIOStPUIx3VZqz0Xmwc&dib_tag=se&hvadid=779604998520&hvdev=m&hvexpln=0&hvlocphy=9013097&hvnetw=g&hvocijid=10053808666861179162--&hvqmt=e&hvrand=10053808666861179162&hvtargid=kwd-1703708070661&hydadcr=13571_13366503_1279924&keywords=4x4+hepa+filter&mcid=ddff71da463b3da48aa9060aea03a6bc&qid=1770880673&sr=8-3 It is definitely possible you’ll need either a different fan, more power, or both to maintain the level of air flow you need, but you may not. One thing to consider is that you need a decent amount of suction to pull the fumes into the fan for filtering. One way you could get a much better result and ensure you aren’t breathing in anything would be to effectively create a fume hood. You could 3D print an open-front enclosure (you’d want at least some enclosed head room at the top, so if the internal height of the box is 24”, as an example, you may only want the opening to have a height of 18” or so. Not exact numbers, just an example). Then mount 1-4 of your fan assemblies to the top. Even with minimal air flow through the fans/filters, you’d have the fans pulling air up, with fresh air moving in the front of the box. This would ensure all fumes move to the top of the box and, even if slowly, ultimately get filtered. Something like that would be overkill for a soldering setup, but it would be 100% printable/something you can easily make at home, and would eliminate 100% of fumes and contaminants instead of just