The masks being used and currently marketed contain graphene oxide. Not only the ones withdrawn at the time, as indicated by the media, the testing swabs used in both PCR and antigen tests also contain graphene oxide nanoparticles. All major COVID vaccines, AstraZeneca, Pfizer, Moderna, Sinovac, Janssen, Johnson & Johnson, etc. also contain a considerable dose of graphene oxide nanoparticles.