I'm going to nominate another grower, SOG, only out of sheer respect for him and his room. He has that thing nailed down to a T. Here's a link:
https://www.rollitup.org/grow-journals/131873-sog-grow-room-op.html
pics attached
no not so much as a faint scent.. 100% filteredbeautifully concealed, that's very neat man i bet that doesn't smell in the least bit b/c of your filter setup