The company CopperH20 invites customers to "experience the benefits of a copper water bottle," and claims the product can protect people against getting COVID-19.

https://www.king5.com/mobile/article/news/health/coronavirus/ftc-investigating-blaine-company-claiming-its-copper-water-bottles-can-protect-against-covid-19/281-d84f5a2f-7929-426a-94ca-b36f66e0f734