Inspired by a documentary he’s making about COVID-19, the artist decided to create an entire collection after printing his iconic middle finger onto one of the disposable cloths. “An individual wearing a mask makes a gesture; a society wearing masks combats a deadly virus. And a society that wears masks because of the choices of individuals, rather than because of the directive of authorities, can defy and withstand any force. No will is too small and no act too helpless,” he writes on Instagram. While masks have become a ubiquitous symbol for the COVID-19 crisis, many of the inky renderings hearken back to Ai’s ongoing commitment to humanitarian efforts.