Copper in anti-coronavirus products

Interesting article in the New York Times: 

In recent months, there’s been a surge of interest in materials laced with the metal, including socks, bedsheets and coatings that can be sprayed onto surfaces. Multiple companies are marketing face coverings and masks with built-in copper linings, touting their germ-killing properties. One company even offers a “nasal wand” designed to apply “the touch of solid copper” to the hands, face and nostrils at the first sign of illness. 

But while copper does have antimicrobial qualities, Dr. Johnson and others said you should think twice before buying into many of these products’ claims.

Who knew copper was so popular?