Dutch designer Daan Roosegaarde and his team of experts have created the world's largest smog vacuum cleaner. The Smog Free Tower uses patented ion technology to produce smog-free bubbles of public space, allowing people to breathe and experience clean air for free. Creating a tangible souvenir, Roosegaarde designed Smog Free Rings, Smog Free Cubes and Smog Free Cufflinks of compressed smog particles. By sharing Smog Free Jewellery, you donate 1000m3 of clean air to the city. The Smog Free Project is not only intended to be a local solution for parks, but also an inspirational experience of a clean future. Along with governments, NGOs, pro-bicycle campaigns and the clean-tech industry, people can work together to make a whole city smog free.