Smell usually only builds up strong during the 12 hours of darkness when extraction fans are often off and then fans kick on and it will stink bad for a mile for half an hour...
if your venting outside run extractor fans 24/7 even in the dark period,this can work fine but if possible extract into a air conditioned room with a carbon filter.
with a powerful large commercial diameter 25mm fan dialed back to 50% using a fan controller it will run close to silent and draw little power and make little noise and still push a lot of air, always choose a fan 3-4 times your need and dial it back with a controller, bigger the diameter the quieter the fan, axial fans are so much quieter than centrifugal fans if you dont need to push through a carbon filer.