How does an artist cope with China's massive pollution challenge? Beijing-based artist Matt Hope used his mechanical engineering background to create this amazing breathing machine using a Walmart bicycle cobbled together with various found components, such as a wind generator, an Ikea trash can and a Chinese fighter pilot mask. The bike generates clean air through an electromechanical filtration system. Air gets pulled into the bike through an Ikea trashcan, and the dust particles get positively charged and stick to a metal trumpet. The cleaned air gets propelled through a tube to the gas mask, fit for breathing.