To the best of my knowledge, formaldahyde in mobile homes. It used to
be used to preserve paneling that was used in most of the older models.
I was babysitting years ago in a new (at the time) mobile home that was
paneled and became quite sick and ended up having to give that up.

I am living in a mobile home now and is all drywalled except for 2
walls in the bedroom and have no problems.

Also I have no problems with the vents and the ferrets.
-- 
Hugsss
Lori

[Posted in FML 7327]