In-Cabin Microfilter Retrofit

[Dr_Snooz]

This is a long shot, but has anyone ever retrofitted our ducting to accept an in-cabin air microfilter? It's one of the few things I like about my BMW and I'd love to retrofit my 3gee for one. Does anyone have any pointers?

Thanks!

[Pico]

you might be able to adapt one out of a 2nd gen Legend, when I changed mine the Legend one was small and thin.
Not sure but you can look into that