inspired by @mark_ungrin I cut some holes into some PVC board, cut a long strip of cardboard with the same width, added 2 P14 Arctic fans, some elastic (so the cardboard doesn't give), and some washi tape to make a small, quick-assembly, collapsible build.
The idea is to put a small powerbank on the inside and have this be a flat-packing solution.
https://twitter.com/Mark_Ungrin/status/1619892737532391426?s=20
#DIYpurifier #CorsiRosenthalBox