Due to their high cleaning performance, the air purifiers of the 5000(i) series are suited for rooms with an area of up to 130 sqm. Odours, allergens and pollutants are reduced by its active multi-layer filter system. The practical 4-colour display facilitates monitoring of the air quality: A narrow ring visualises the condition of the room air through a gradient from blue (good) to red (bad). Users can also control the air quality and operate the device by means of an app.