Printer Air Filter

I quickly knocked together this air filter for my Ender 5, replacing one of the components to my enclosure (https://medium.com/@jagosw/cheap-heated-enclosure-for-creality-ender-5-70-c-for-50-76c9e7dfd225) when I smelt the disgusting smell ABS makes. So far I'm unsure as to its efficacy but I will test when I have time (probably with some kind of air quality filter/particulate counter). The filter could also be mounted on the frame, or another printer, with no enclosure but would probably be even less effective.

To complete the filter you will also need:
- A piece of some kind of filter media, I used a piece of a H13 HEPA bag filter but you could improvise
- 2xM4x12mm and 4xM5x12mm bolts and 2xM4 T-nuts
- 80mm 12/24V fan, I used a 12V one and a buck converter - https://www.amazon.co.uk/gp/product/B00IOIJ4AC/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=jagosw-21&linkId=9c4312950dd7b0005e00030600e8e15e&language=en_GB (affiliate)
- Rocker switch that fits in the hole at the top