As previously indicated, fire statistics reveal that the products of thermal decomposition (smoke and toxic gases*) are responsible for the majority of fire deaths.
* carbon monoxide, hydrogen chloride, hydrogen cyanide, sulphur dioxide and oxides of nitrogen
Urethane foams are flammable, and should be protected by a covering that will prevent excessive temperature rise. Inherently Fire-Retardant Fabric coverings
, and Fire-Retardant Sprays, can mitigate the dangers posed by synthetic foam upholstery*.
*Unprotected polyurethane foam produces smoke within 40 seconds of exposure to flame.