Just mount the carbon filter inside the room and let it continuosly recycle the air in the room rather than venting it outside.
killerweed420 Reviewed by killerweed420 on . carbon filter or no carbon filter??? Hi guys Iā??m new around here and just wanted some advise on my 1st grow before I start to flower. I have a small front of the house witch I have a grow closet in I keep the door/window closed and have stuck a double mattress over the window so that no heat or smell will leave the room. I have 3 plants that are about 8 weeks old they are skunk no 1 so will pong a bit me thinks lol i am useing cfls so no heat worrys. I have uploaded a layout of the top floor of my flat that is on the 2nd Rating: 5