A new illuminating cape was designed by a group of scientists in King’s College London and artist Kasia Molga at Invisible Dust organization to help air pollution become visible. When the cape comes in contact with pollution its colors turn  red and when sitting in green area, the colors turn green.

“Localized fluctuations in air quality will be represented via animated illuminations powered by the exhaled breath of a performer,” Invisible Dust says. “Humans Sensor looks at vulnerable position of human body exposed to increasing pollutions and pollens in the air as a result of mass urbanization, climate change and decreasing biodiversity.”

A small aerosol monitor, a Raspberry Pi computer and a GPS are all linked to one another. The air data are collected, configured and then reflected in the changing colors of the cape. The wearable air-pollution detector cannot provide results in real time yet.

“The reaction has been amazing. People quickly realize it’s to do with the air and breathing. Many passers-by have been surprised and concerned that the changing colors on the costumes mean that they can ‘see’ the air pollution for the first time,” Molga told the Guardian.