Nov 17, 2012 #1 X XAce New member Joined Nov 17, 2012 Messages 0 Reaction score 0 Points 0 I removed the air vent of the AC and heating, at the border of the wall opening there are hairy looking black fibers, seems like a growth. I also found similar in the intake area behind the filter.
I removed the air vent of the AC and heating, at the border of the wall opening there are hairy looking black fibers, seems like a growth. I also found similar in the intake area behind the filter.
Dec 26, 2012 #2 R ROTTnlcod New member Joined Dec 26, 2012 Messages 1 Reaction score 0 Points 1 Don't worry, probably just asbestos.