Stephen Petty:
Certified industrial hygienist;
Certified safety professional;
Professional engineer;
45 years in the field of health and safety, trying to protect workers and the public from toxins;
Named/testified in over 400 legal cases related to exposure control and personal protective equipment (PPE);
talks us comprehensively through 50 years of evidence showing the ineffectiveness of masks in mitigating SARS-Cov-2, the COVID virus.
https://metatron.substack.com/p/everything-you-wanted-to-know-about