The Dometic air purifier uses advanced Dometic CleanAir technology. When voltage is applied to the two needle-point brushes, they interact with the oxygen and moisture in the air to produce negative and positive ions. These ions have three positive effects. First, they help reduce bacteria, viruses and mold by attacking their core structure. Second, the charged ions attract the dust particles in the air. This creates larger lumps of particles, which can be easily caught in the AC filter. Third, the ions also break down the molecular structure of volatile organic compounds. This eliminates unpleasant smells caused by chemicals or waste.