Mobile Purifier / bicycle

Air pollution is an important issue to the world. Many cities are promoting public bicycle system in order to reduce the emission of cars. The concept of mobile purifier is trying to improve the air pollution of city. Mobile purifier is designed for public use. This bike's frame is hollow so the air can get inside and pass through with it. There is a Filter tube inside the frame. the filter can collect the impurities and refresh the air. When people ride this bike. It will purifying air at the same time. More people riding this bike, the air of city will becoming more clean.