What type of filter might I need for ABS?
So here's a question for all you chemical engineers/hazmat specialists. I'm trying to get a handle on nomenclature and hazard types.
I plan to vent my enclosure to the outside world, but the outside world is a relatively dense urban environment and I don't want to just have a spew chems at passerbys. So. I'm looking to filter my particulates as effectively as I reasonably/cost-effectively can.
I have this study (the good stuff is on pages 6 and 7):
https://www.concordia.ca/content/dam/concordia/services/safety/docs/EHS-DOC-148_3DPrinterSafety.pdf
And this table of types of respirators:
https://www.grainger.com/category/cartridges-and-filters/respiratory/safety/ecatalog/N-bzb
And I'm just looking to marry these two resources. Are volatile organic compounds the same as organic vapors? Is there a listed industry that, from a chemist or hazmat specialist's perspective, most closely matches the chemical exposure hazards of 3d printing? Is there a type of filter/hazard type listed that is particularly well suited/matched to ultrafine particles?
Thank you very much for any responses
Re: What type of filter might I need for ABS?
3M do a filter material that generates an electrostatic charge to capture particles in the filter, consider using a differential pressure transducer to monitor the state of your filter so that you can change it, before it gets clogged.
provide either balanced pressure on the inlet and exhaust ports of the ventilation to prevent back drafts, otherwise the filtration will fail in windy conditions
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: What type of filter might I need for ABS?
Very cool, I hadn't heard of those. Do you have a model in mind? I tried looking through their catalog this evening and I couldn't find anything hydrostatic rated for gasses, such as the VOCs
Re: What type of filter might I need for ABS?
Gasses probably need an activated charcoal filter, it was micro particles that I was suggesting the 3M filter material for...
I used some in an atmospheric polution monitor I was working on, but it was sourced by another member of the team who is no longer with us....
it was very low resistence to flow but exceptionally good at capturing fine poluting material
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: What type of filter might I need for ABS?
Yes, it would appear that an activated charcoal filter indeed is the thing to look for:
https://www.terrauniversal.com/laminar-flow-hoods/charcoal-filters.php
Re: What type of filter might I need for ABS?
Joan, understood, thank you
Gdo, it would indeed, that pdf linked on the bottom of the first page is very helpful, thank you very much