ir pollution is a global problem, especially in Asia where extreme levels of C02 are driving people indoors. So, as a proud supporter of street culture and sustainability, Tiger created Air-Ink™, the first ink made from air pollution. We created a range of Air-Ink™ products (pens, markers and spray paint), and launched it in Hong Kong using street artists to create murals all over the city. Six months later, we took the idea to the global stage with campaigns in London, New York, Singapore, Berlin, Amsterdam, Chicago and Sydney.