evidence: Smart mobile toilets at the Beijing 2022's Olympic medals plaza in Beijing, China. /Shenzhen General Institute of Architectural Design Research Technology has played a major role in China's battle against COVID-19, more so as it hosts the 2022 Winter Olympic Games. Smart mobile toilets have been a key feature of the Olympics' closed loop system and Beijing 2022 organizers say they have been an important player in the prevention of COVID-19. [...] Smart mobile toilets at Beijing 2022's alpine skiing and sliding competition venues in Yanqing District, Beijing, China. /Shenzhen General Institute of Architectural Design Research