There are foam insulators around the vents and also on the ducts below the steering wheel. Recently had mine apart to remove debris from the blower motor and ducts (damn mice

). The foam is just worn out and falling apart. Nothing major. Just pull it out with a pair of tweezers and forget about it.
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1996 Paseo 5E-FE 269,xxx miles - Gotta fix that sagging DS door.

New hinges on the way.
1993 Camry LE 5S-FE 249,xxx miles - New water pump, TB etc etc
1989 Camry-Gone but not forgotten. Car has become a birthday gift for my cousin.

1997 Mazda B2300 213,xxx miles - New flasher relay installed.