Phthalates are a group of chemical plasticizers used to increase the durability of plastics, primarily the softer ones found at the lower end of the durometer range. Phthalates are government regulated, particularly on children's products and are referenced under the Consumer Product Safety Improvement Act of 2008 (CPSIA) and the more recent 2017 ruling (16CFR part 1307). You can learn more by visiting the CPSC website.
We do not state that our products are phthalate free, but all of our products are well below government regulations. While some items contain less plastic than others, test machinery has a minimum limit as to how low it can test. Normally any readings below 20 ppm register as "not detectable," meaning that phthalate may be present but not at a detectable level. Particleboard itself does not contain phthalate, but the edge banding is made of PVC and may.