Sporting goods retailer Decathlon has converted its line of snorkelling masks with the help of engineers from an Italian research institute who used a 3D printing hack to transform the equipment. The ventilators were developed with the help of engineers from the institute of studies for the integration of systems (ISINNOVA) in Rome. Engineers at ISINNOVA, had the idea of making masks out of decathlon‘s scuba equipment and in three hours, created a prototype for a 3D printed valve that successfully converted the gear into a ventilator mask.