You don’t see it, but the air you breathe every day is unclean. In many parts of The Netherlands the air is more unhealthy than you think. Each year, over 5,000 Dutch people die as a direct result of this pollution. It is a big problem but because air pollution is mostly invisible, people are not really aware of the danger. That is why Havas Lemz came up with an easy way to make the invisible visible: an air quality check on your mobile phone.