ap140 pro filterAP140 Pro Filter The 360 high performance multi layer filter filters pollutants such as dust, particulate matter (PM10, PM2. 5 and minor), pollen and dust mite allergens, pathogens such as bacteria and mold spores as well as than cigarette smoke in the ambient air. On average, the 360 filter must be changed after 12 months, depending on the intensity of use. In addition to the included 360 particle filter, a high quality activated carbon insert is