In this article. the evolution of in-flame soot species in a slow speed. buoyancy-driven diffusion flame is thoroughly studied with the implementation of the population balance approach in association with computational fluid dynamics (CFD) techniques. This model incorporates interactive fire phenomena. https://www.bekindtopets.com/mega-save-Harrows-Black-Knight-Soft-Tip-Darts-20gm-special-save/