Hi Guy's,
I'm looking to build an air extractor and filter unit for a 3d printer. From what I've read, using a 3 part filter is best suited, combined from a 5 micron first stage followed by a 99.997% HEPA Filter and then 4lbs of Activated Carbon to capture the final 0.3 micron Particles and VOC's.
What would be the best choice or choices of sensors to then test the cleaned air, thus to know when the different filter parts need replacing?
HM3301 after the 5 micron first stage filter, ??? after the HEPA Filter, SGP30 after the Activated Carbon?
Your thought's and advice would be appreciated.
Dizzwold.