Smog is a type of air pollution in China, which is considered to be harmful to human health. During the past years, major cities in China have been heavily polluted. PM 2.5 can be inhaled into lungs, containing a huge amount of toxic materials, which are able to maintain in the air for a very long time as well as transport for far distance.

This project is designed to appealing people's awareness of how colorful our world can be instead of covered by smog.