I'd hate to state the obvious but have you considered switching to led after a couple of grows?
Odours are carried by warm air lifting particles and carrying them as it rises, anything from a fart to a hot corpse, so logically the less heat you have in the first place the less particles get carried to your filter I'd presume.
Odours are carried by warm air lifting particles and carrying them as it rises, anything from a fart to a hot corpse, so logically the less heat you have in the first place the less particles get carried to your filter I'd presume.