People spend over 90% of their life indoors, while indoor air pollution is an underestimated health risk. Sense protects you and your loved ones by measuring the indoor AIr Quality and sensing Carbon Monoxide (CO). Like a guardian angel, Sense alerts you and provides personalised recommendations, helping to keep you safe and healthy. But how can you make air quality - which is invisible - tangible, clear and understandable for all users? With Sense we want to make the invisible air you breath, visible! During an intensive design sprint we managed to create the app, design the Sensor and develop the marketing website.