
HEPA Filter for the Original Prusa Filter (with USA Amazon Links)
prusaprinters
Hi there, thank you for looking at my HEPA filter model for the Original Prusa Enclosure . There are many similar models but I wanted to build and share one specifically to fit this enclosure with parts cheap and readily available on Amazon in the USA. I've experimented with USB connected PC fans 120mm + and none have the suction a true HEPA filter needs. Most of the fumes created are .01-.05 microns so the smaller particles (.001-.03) will still escape this system, but it is a good start. The AC infinity fan is strong and creates a great negative pressure (tested with smoke machine and saw the fan/filter working effectively). Another benefit to this fan is the precise measurements of the mounting holes, they align perfectly with the enclosures holes, though they will need a little widening to accommodate the included screws. The screws are also a bit long so cutting ~¼ inch or so will help fit the HEPA filter better. The filters are fairly well made and include a charcoal filter before the HEPA as well. Both the fan and the filters have a flow direction signage to help reduce confusion and make installation easier. Be sure to cut out the enclosure screen before installing (I failed to do this and it was a funny reinstall). The fan comes with rubber washers which reduces decibel levels and vibrations. It is not silent but I registered about 34 decibels right next to the fan.Things you will need (all the hardware is included in the fan):A printer to print the HEPA mountFan (AC Infinity AXIAL LS1238, Quiet Muffin Fan): https://www.amazon.com/gp/product/B07CZRKTBZ/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1HEPA Filters (Hunter F1715HE5 True HEPA Replaceement Air Purifier Filter 2-Pack): https://www.amazon.com/gp/product/B07C9QZNFK/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&th=1
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