Recap:
your fan is efficient enough. definitely use a carbon filter whether youre medical or not.
If you have a cop neighbor, just dont have people over, and make sure you keep your filter fresh.
As someone mentioned earlier, keep your grow a secret. GF's are the worst thing for your freedom.
in addition to using a carbon filter, try to keep your grow room pressure negative so the smell doesnt seep out.

hope this helps.
GanjaRobPDX Reviewed by GanjaRobPDX on . I live across the street from a cop. Please help me with a venting system!!! Right now I can bid on a.. 8 Inch 650 CFM Can Fan Grotek Hurricane Metal Fan Anyone every use one of these just out of curiosity? My real question is do you believe this would be sufficient enough to filter out two 3x3 sections in a 9x7x10 room. I will need it to run through 2 filters and go about 25 feet of vent tube through my attic to my bathroom ventilation. If you believe this is not sufficient could you please direct me in the correct path. For what I need to vent what would Rating: 5