Hey buddy, we have the same model, we prefer to have everything outside, and the carbon filter last of all. By putting the filter first, you limit the extraction flow. We recommend you set up the extractor followed by the duct, and at the end of the duct outside the cabinet, the filter. And if it still smells, get yourself an ozone generator. We hope to help you, cheers and happy growing 💚🍀🌱🍀💚