Bosch pollen filters
Millions of people suffer from pollen allergy. One out of six suffers from itching, sneezing attacks and hay fever – especially in spring. This can lead to dangerous situations while driving, since a sneezing driver is a blind driver. That’s why people suffering from pollen allergy should keep the windows closed while driving. To prevent the allergenic pollen to get into the car through the ventilation or air-conditioning systems, most cars are nowadays equipped with a cabin filter. In an effective manner it keeps pollen, dust and even pollution out of the passenger compartment. Nevertheless – just as with any filter – the effect of the cabin filter also decreases once the filter capacity is exhausted.
Figure 1 For some of us it’s that time of year (Source: Bosch)
“Cabin filters cope with a restricted amount only and should thus be replaced once a year”, the patient counselling of the German Allergy and Asthma Association recommends. “In doing so, a trained specialist workshop should clean the filter surroundings, the channels and the evaporator at the same time”.
Figure 2 Cutaway picture of an activated carbon cabin filter: 1 Preliminary filter, 2 Microfiber fleece, 3 Filter, 4 Activated carbon. (Source: Bosch)
In order to achieve an optimum filter effect during the critical pollen season, the cabin filter should be replaced already in early spring, Bosch filter experts recommend, too. In this context exchanging the standard filter by an activated-carbon filter is well worth it. Its activated carbon layer – made out of coconut shells – absorbs gaseous pollution thanks to its spongy structure. In addition to pollen and fine particulates, Bosch activated-carbon cabin filters even retain stinking and harmful gases such as ozone or nitric oxide. Any workshop can quickly and easily replace the filter or the standard filter by an activated-carbon filter.
Additional information can be accessed at www.bosch-automotive.com