Our mats have been Oeko-Tex 100 Tested and Approved and are Safe, Non Toxic, Hypoallergenic, No Phthalates, Phenols or PAHS, Free from Lstex, Rubber or Silicone. Our patented PER MATS are made from non toxic resin, free of rubber, silicone, latex and does not emit any toxic chemicals or gases. Please note that PER is patented product and NO PVC as many less expensive products. Be careful of imitations not registered PER . This mat has been successfully tested again harmful substances.