This study was carried out to determine the carbon dioxide amount in the combustion of European oak wood (Quercus petreae liebl.) bleached and varnished. For this purpose, samples of European oak wood prepared according to ASTM D 358 contain 18% R1 = (NaOH + H2O2), R2 = (NaOH + Ca(OH)(2) + H2O2), R3 = (Na2S2O5 + H2C2O4), R4 = (NaSiO3 + H2O2), R5 = (KMnO4 + Na2S2O5 + H2O2) solution groups, after bleaching with solution groups, water based (Sb), synthetic (Sn), polyurethane (Pu) and acrylic varnish (Av) were applied according to ASTM D 3023 and compliance with ASTM E 160-50 guidelines in combustion tests. Gas measurements were made with the Sigma 74172 NSU flue gas device during the combustion process. As a result, the amount of CO2 in the flame source side (ppm); the highest R4 in the varnish level (3.469), the lowest Av (1.236), the highest R4 (3.763), the lowest R2 (1.127), the highest R4 + Sb (7.583), the lowest R5 + Sb (0.8333) was obtained. Amount of CO2 in the without flame combustion temperature (ppm); the highest RV (r = 7.194), the lowest RV (3.469), the highest R1 (7.820), the lowest R2 (3.277), the highest R4 + Sv (12.73) in the lowest R3 + Pu (3.000) was found. CO2 amount in the baking combustion (ppm); (7.356), the highest RV (3.540), the lowest RV (3.565), the lowest RV (3.565), the lowest RV (3.522), the lowest R4 + Sb (1.173) was obtained. CO2 amount in the baking combustion (ppm); the highest R4 of the varnished oak wood (7.056), the lowest Av (3.522), the highest R1 (7.540), the lowest R2 (3.610), the highest R4 + Sv (9.667) in the lowest R4 + Sb (1.173) was obtained. According to this, it can be said that the solutions of R1 and R4 with synthetic varnish are not suitable for poisoning effect in fire risk areas.