You are correct on your assessment George. But then why would a competing mask additive (SINTX) say in a press release:
Our new fabric-based R&D may improve the effectiveness of PPE," said Bryan McEntire, Ph.D., Chief Scientific Officer at SINTX. "Currently available face masks, for example, that make antiviral claims rely on the addition of metal ions, such as silver, copper, and zinc, as well as other chemicals to the mask fabrics. Unlike these additives, which are either allergenic or toxic to human tissue, extensive testing has shown that silicon nitride powder is non-allergenic, and non-toxic to mammalian cells. Additional development and testing will continue with the goal of meeting ISO and ASTM standards in the forthcoming months.
If I were ZEN I would contact them to rescind that statement or sue them.
Steakhouse |
