120mm Fan GL2103 HEPA Filter Mount
thingiverse
I was looking for some cheap available HEPA filters to use on my printer enclosure that already had 120mm fans installed (server rack). I found these GL-2103 fitting filters that were reasonably priced and easily available on Amazon from multiple suppliers. I used these (3 pack for $20) https://www.amazon.com/gp/product/B08NYQZ3F6?ie=UTF8&psc=1&linkCode=sl1&tag=kvan-20&linkId=94fe187c6aecd536de122289ab681e16&language=en_US&ref_=as_li_ss_tl (paid link) They are a little smaller than the 120mm fans so I created a second plate with a smaller diameter (Base). They do choke the fans flow and I'm not sure how well the HEPA filters actually work. It does move air, not as much as an unrestricted fan obviously.
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