Several independent tests have been performed on the fabrics we use to make our masks. We have received the OEKO-TEX Standard 100 certification for our fabrics, which ensures our fabrics are free from toxins or other harmful substances. View our OEKO-TEX certification. Our meltblown filtration fabric has also been tested for performance in an independent lab. View lab results here. Our masks have been submitted for independent tests and we are awaiting those results.