Happily driving along, everyone in the car is in a good mood. Summer landscapes, forests and meadows pass by outside. But then the tranquillity is shattered by a shrill sneezing from the passenger compartment; the children rub their eyes and now the driver is sneezing, too. Trees, grass, pollen. Hay fever. These are all typical summer ordeals. According to the German Allergy Sufferers and Asthma Association (DAAB), about 20 per cent of all Germans will develop a pollen allergy in the course of their lives. One of the numerous allergy triggers are fungal spores, which are often present in outdoor air in the summer and autumn. In the light of this, Volkswagen has developed a special automatic climate control system, which prevents these pollutants from entering the car: "Air Care Climatronic".