I built my carbon filter using the pencil holder method and all, But not enough air get through, It is at 91? and climbing. Im using a 64 cfm fan for my exhaust and a passive intake, Its a shitty situation here. I cant start flowering till i get this situated. Its hard for me to get to where my carbon filer goes so i cant really play with it, Ill try to make a Make shift box for this grow I guess, Like some carboard with venting, wtf