W.L. Gore & Associates has issued an official statement that “Gore-Tex materials are NOT designed and engineered to provide adequate airflow to assist human respiration when used in the manufacture of personal protective equipment, including face masks, and are NOT a viable alternative to protection against Covid-19.” Gore said that the brand’s products are designed to meet certain standards and to deliver the desired performance through careful design and rigorous testing, but this does not include protection against airborne disease organisms that are primarily absorbed through the respiratory tract.