In line carbon filter

Does anybody have plans for a carbon filter that can be placed in the vent line?

yeah man just cut out those carbon filter sheets... put carbon inbetween and stick it in the duct... I have that setup with an ona filter as well and i have 0 smell.

a guy on here had one where is was like a cloth sack filled with fish tank carbon and he just stuffed it in his vent duct, says its been working for one whole cycle and hes into his second one. when selecting a material for the bag make sure its something that allows for good airflow .

i have did that as well... the sack...pantyhose.... but i have to say that the air gets restricted allot.... i ended up pulling mine out ...the ona alone and the cut out prefilters work..