The nano-needle coating technology introduced in the United States has been modified into the BioNTex ReGen+™ formula, which is the regeneration treatment of BioNTex™ clothes after multiple washings. Recoating forms a long-lasting protective film of positively charged needles on clothing fibers, enhancing the functionality of BioNTex™ and attracting negatively charged bacteria and viruses to contact and pierce their envelope, resulting in physical disinfection . The formula has also successfully passed a number of safety tests and certifications to be harmless to the human body, and can effectively kill coronavirus , Aspergillus niger , Escherichia coli , Staphylococcus aureus up to 99.99%.