Hi fellas (and ladies)
Heard a lot about carbon filters recently and was wondering how effective they are at removing the scent at harvesting time... on my first grow the whole building seemed to stink, and while i cant think of anything nicer, I really need a more stealthy operation this time...
any tips on cost etc... would be most helpful..

Carbon filters remove 100% of the smell IMO, just keep a lil bit of negative airflow in the G/R and smell is never a worry