Fits any 120mm or 140mm PC fan

If you choose a USB fan, you can add a "usb fan speed controller" (Google it) to adjust and increase USB fan speed. 

Cut hepa filters from "Frameless hepa filter" (Google it) and activated carbon filter from "Activated carbon filter sheet".

Use the gcodes instead of slicing. Upload the gcodes on an SD card and insert it in any printer. Launch the gcode from the printer interface, ignore warnings and proceed. Adjust temperature once the print starts to fit your filament needs

Printer requirements for the gcodes: preferably 0.6mm nozzle and at least 160x160mm buildplate
 

Video: https://www.youtube.com/watch?v=FhuVkZABzz8


Slicing:

- infill line width: 1.2mm 
- walls: 0
- bottom layers: 0
- top layers: 0



License Public Domain:
https://creativecommons.org/public-domain/cc0/