Every day, unknowingly, we breathe fine dust with negative impacts on our health. Architect Iris de Kievith and designer Annemarie Piscaer found a way to harvest the dust and to use it for ceramic glazing, creating a new porcelain tableware. The colourful glazing created from the captured dust makes the (poor) air quality visible, even tangible. The use of ordinary dishes -a cereal bowl, a coffee cup- is just as usual and intimate as breathing, and becomes a suitable means for heightening awareness of air quality. Initially the new tableware is produced using the air pollution of Rotterdam. As a way of participative urban mining, people in each city can help harvesting the dust in their most polluted city roads. The final objective is phasing out production due to lack of material.