Architects across the US have teamed up to manufacture face shields for hospital workers. The project provides open-source design files for 3D-printing shields and is coordinated by the Architecture, Art and Planning faculty and Cornell University in New York. Architecture firms use their own 3D-printers and laser cutters to make the visors, which are distributed to hospitals around the country. Many of the firms are basing their visors on files created by Erik Cederberg of Swedish 3D-printing company 3DVerkstan. The laser-cut visor is made of clear plastic and a 3D-printed band that fits across the user’s forehead. The only other tool needed is a hole punch, which makes the holes used to clip the shield to the visor. The plastic shield needs to be replaced frequently, but the 3D-printed clip can be sanitised and reused.