First, I would like to give a HUGE thanx to everyone on the boards here. Being completely ignorant in the art of indoor horticulture, I came here looking for answers and tips. After combing the posts, many of my concerns have been laid to rest.

Now, for my NOOB question: My growing area is 4'w x 8'H x 2'd, though I plan on capping the height at 6' to maximize light concentration. I dropped the cash (now broke) for a 400w HPS light, which will be used throughout the growing process (post germination).

What kind of CFM will I need to insure proper ventilation, or what type of fan will I require? During veg, simply leaving the door open (sacrificing precious, life-giving, light) might be an option as I cetainly won't mind the dank aroma, but not during flowering. Attic venting would require activated charcoal in the solution. I don't think this lil' cpu fan is gonna' cut it
noxx Reviewed by noxx on . 1st Post, Venting question First, I would like to give a HUGE thanx to everyone on the boards here. Being completely ignorant in the art of indoor horticulture, I came here looking for answers and tips. After combing the posts, many of my concerns have been laid to rest. Now, for my NOOB question: My growing area is 4'w x 8'H x 2'd, though I plan on capping the height at 6' to maximize light concentration. I dropped the cash (now broke) for a 400w HPS light, which will be used throughout the growing process (post Rating: 5