Airpocalypse is a design proposal that helps improve the smog problem in Beijing. Collaborating with Danish cutting-edge air purification company Infuser, we proposed a new addition of a giant canopy over the entire block in the city. The design aims to create a naturally-driven air circulation system in which the pollutant will be removed by advanced air cleaning technology known as GPAO (Gas phase Advanced Oxidation). The system offers a sustainable design solution that has minimal carbon footprint and produces clean air in the scale of urbanism.