International audience The growing use of common consumer goods made of materials containing nanoparticles could increase the exposure of consumers to these substances during their lifecycle. In view of evaluating this risk a setup and experimental protocol of weathering and mechanical solicitation was realized. Tests on two paints were performed. One of them releases mainly submicronic sized nanostructured nano-objects and their agglomerates and aggregates (NOAAs) of titanium dioxide in presence of free nano-TiO2. The formulation of the emissive paint is under question.