https://arstechnica.com/tech-policy/2020/03/ebay-bans-sale-of-masks-and-hand-sanitizer-over-gouging-concerns/

eBay is banning the sale of a number of items related to the novel coronavirus outbreak after rising prices raised concerns about price gouging.

The online auction giant says that "effective immediately" it will "block new listings and start to remove listings" that offer "masks including N95/N100 and surgical masks." Hand sanitizers and disinfecting wipes will also be banned.