i am goin to build 3 or 4 of them 1 or 2 spare, one for my seperate bud dryin room and one for the flower room. ive already got the material for 2 of them except the ac.all the local stores were out of it.
good thing i still have some time before i start my project completely, i want to get everything gathered and made so when my home is done all i have to do is build the closet and start germinating.

does anyone know how to prevent pollen coming through a a vent through a vent(i want to expell the air from the clone and veg room to the flower room through the floor)