- the clever way Air filter for your air purifier, 2-way filter system: Hepa + activated carbon for hygienic indoor climate & high air quality All compatibilities & technical details can be found below these filters from replacing the filter of your ventilation device quickly and easily. This ensures highly efficient filter performance of your air purifier. The combi filters consist of a HEPA and activated carbon filter. The HEPA filter cleans the air of fine particles such as dust, pollen, smoke or nicotine. The activated carbon filter efficiently neutralizes unpleasant smells, smoke and vapors. Our filters are of high quality and are therefore designed for a long service life. They can be easily installed. So order today and enjoy clean, fresh and pollutant -free air at any time. Scope of delivery: 2x combination filter Hepa + activated carbon technical data: Dimensions (L x W x H): 36.6 x 34.1 x 4.35 cm Material: activated carbon Color: black / white weight: 427 g suitable for the following device models: Stadler Form Roger, Roger Big Replaces the following original accessories: Stadler Form R-113 - the clever way High quality with spare parts and accessories. For a long service life of your electrical appliances.