Unlike oil paints, acrylic paints do not release harmful chemicals when drying up, and in fact, almost every acrylic paint is non-toxic. Some acrylic paints have additives like thinner, cobalt, manganese, chromium, lead, and cadmium to improve the color, viscosity, and overall performance of the paint. Despite being non-toxic, I still recommend using acrylic paints in a ventilated area to make sure.