You can use a sawzall or a core bit in a drill,or even a drill with a small bit in in it.Just trace the size hole ya want.I'd do a 4 inch! You are gonna need 2 of them.Then just drill them out.One for the intake and 1 for the exhaust.Use the silver dryer flex hose for the both.The white will let light in and out from your room.Put a fan above your light,and run the flex down to one of the holes along the inside of your closet in the corner maybe,and down through the floor.Take another small peice of the flex and put it in the other hole and just let it hang there.Tape it so it won't fall through.That is your fresh air intake.The fan abovewill pull most of the smell out of the closet and under the house.Let me know how ya do! I'll get cha goin! You can upgrade as you get the jest of it all!Grow on!

Ga Grown!