Is cellulose toxic?
No. It is considered a nuisance dust by the E.P.A. and the borates that the cellulose is treated with are non-toxic to humans. Fiberglass insulation is a known carcinogen and the smoke from smoldering foam is toxic. Cellulose has a great burn rate and although it's dusty when being installed, it is completely safe.
Appears in: Frequently Asked Questions