Wood preservatives, Insecticides (e.g. moth-repellents for carpets), Solvents (e.g. from paints and lacquers), Formaldehyde (e.g. from chip boards), Plasticisers (e.g. from PVC flooring), Flame-proofing agents (e.g. from cushions, textiles, wallpapers), Poly-aromatic hydrocarbons (e.g. from parquet glues)