[Planted]

Hello, im obviously new to these forums and have already learned lots by reading many other threads.I recently decided to turn my closet 3x3x9 into a grow room.
Im going with a ebb and flow system that im gonna construct myself.
Oh ya im using 2 closets actualy both about the same size and 1 being slightly smaller.
Gonna use 1 for veg and 1 for flowering.Gonna use some cfls for vegging and a 250w hps for flowering.
Now these closets are in my bedroom that i smoke cigarettes and blunts alot.
is that extremely bad ? i can seal closets from smoke but what do i do about ventilation?
I also need to conseel this ventilation system as much as possible as i canthave tubes visibly venting my closet lol.
anyway sorry for the novel and i'd rly appreciate some help on this because withthe amount of weed i smoke and money spent I MUST GROW.