Smell is often a concern when growing cannabis. That is why Grobo's Smell Reducing Carbon Filter is here to help! Our custom filter uses two layers of activated carbon to filter the air. The air passes through the filer before it leaves your Grobo.
The smell becomes strongest towards the end of each grow as the flowers grow. So, if you open your door often during this stage, some smell will be emitted. We recommend changing your filters after each grow and keeping your Grobo's door closed for best results.