depends on how many plants and how stinky they are. I tried using one of those ONA-odor jars with three flowering plants. But the stink of the plants was WAY more powerful smelling. i use a carbon filter now.
STINK,,,, bite your tongue,,, FRAGRANCE,,,now that would be more like it. And yes it is very hard to get rid of without spending lots of money if you have a good amount of ladies..................