Cellulose is primarily wood-pulp fibers, and a few other subtances that have been well-known to the scientific community for decades. One such substance is boric acid, which is used as a fire retardant. Boric acid has a toxicity roughly similar to common table salt. None of the substances used in the manufacture of cellulose insulation pose health hazards. Loose-fill cellulose installation can create dust, a potential respiratory irritant. Not only do we use a special low-dust formula, we also apply Stabilized Cellulose, which is cellulose to which a glue has been applied. All that is required is a simple dust mask during installation.
