I'm assuming your are wanting to create "negative pressure" to make sure all of the air is getting scrubbed and non is leaking. This is a good idea, but you want the CFM's of each fan to be fairly close to each other. If you look at the CFM measurement on both fans, the large difference between the 6" and the 10" fans is most likely the source of your problem. Upgrading the 6" to an 8" could solve your problem. How big is the room your are venting? Depending on the answer, this could also be a cause. If CF (length x width x height) of the room is much smaller than the CFM of the 10", then I would advise downgrading the 10" to an 8" instead of upgrading the 6".
skrillaship Reviewed by skrillaship on . suction problem???? When I turn on carbon filter the suction is tearing the mylar off the wall... I have an intake fan 6 inch and out take fan is 10 inch... mylar is stapled down and taped...???? Rating: 5