What is the purpose of the button on the lower side of the Audi A6 B-pillar?

1 Answers
BellaFitz
07/30/25 12:00am
Audi A6L B-pillar button is a negative oxygen ion generator. Here is relevant knowledge about negative oxygen ions: Classification of air negative ions: Air negative ions come in three types: large, medium, and small. The small-sized negative ions are beneficial to human health. Applications of small vs. large negative ions: Small-sized negative ions can more easily penetrate the human blood-brain barrier to exert biological effects. Large-sized negative ions have limited healthcare effects on humans, mainly functioning for dust removal. They are commonly used in air purification applications. Function of negative oxygen ion generator: The negative oxygen ion generator can purify in-vehicle air.
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