This paper studies the release of the principal gas species produced during the combustion of a non-flame-retarded Polyether Polyurethane Foam (PPUF) of density of 20.9 kg•m-3 in the cone calorimeter. Five irradiance levels are studied: 10, 20, 30, 40, and 50 kW•m-2. Heat release rate, mass loss rate and bulk gas mass flow are measured. The