Fast air purification in rooms from 20 m² to 40 m²: The compact air purifier AF 20 with H13 filtration and activated carbon reliably removes pathogens, fine dust, allergens, and odors. Perfect air purification for small rooms, children's rooms, and individual workspaces – the AF 20 air purifier cleans the indoor air using its multi-layer filter system from allergens, pollutants, and pathogens. Additional features include filling with activated carbon and a display for the alphanumeric indication of air quality in PM2.5 particles in µg/m³ and air quality via a color code. The air purifier also impresses with a timer function, child lock, night mode, and ultra-quiet operation, as well as a filter efficiency of 99.95% for 0.3 µm particles and a high-quality laser sensor for automatic mode. This means that the automatic mode and performance level adjust automatically to the degree of air pollution. Furthermore, the filter has a lifespan of approximately one year, depending on air pollution and usage intensity.