China mall installs glass windows on men’s toilet doors that turn transparent when users smoke

A shopping centre in southern China has installed special glass on the doors of men’s toilet cubicles that becomes transparent when people smoke inside, winning applause online. The move involving bathrooms at Shenzhen’s Shuibei International Centre and Shuibei Jinzuo Building, two jewellery shopping malls in Guangdong province, trended on social media on December 16. The glass uses a special technology that is normally opaque and cuts off the power in a few seconds after it detects smoke,...