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- #21
There should be zero smell outside of the tent if you use a good quality carbon filter.
I've decided on HPS, with that said, I do have a question on the use of a carbon filter after watching a couple setup videos. If you have an intake coming from one port of the grow tent, through an air cooled hood and out the opposite port with an exhaust fan, why is there a need for a filter between port one and the air cooled hood. It seems like it is more so filtering the incoming air.
(intake) Port ----> Carbon Filter -----> Air Cooled Hood ------> Port -----> Fan (exhaust)
If the air from inside the tent is released via the air cooled hood, wouldn't it be:
(intake) Port ----> Air Cooled Hood -----> Carbon Filter ------> Port -----> Fan (exhaust)
Also is this releasing oxygen from the tent and replacing co2 or is this the method you use if planning to use a co2 supplement.
Another way I have seen with makes a little more sense is free hanging carbon filter.
Carbon Filter ------> Air Cooled Hood -----> Port -----> Fan (exhaust)
This seems like a more "sealed" environment, but wouldn't work w/ a CO2 supplement as you will just be pulling it from the air and exhausting it too rapidly.