So ive had a dew of those vivosuns off amazon the 6 inch ones. And im smelling too much sweet cheba from my drying room which is a bedroom in a back yard man cave. I got air going through my vege room into a filter and pushed out by 2 6 in inline fans 1 by the drying room and 1 inside the vege room for out going air which passes through a charcoal filter on each spot where my air exits.