Airfresh Clean Connect 500 air purifier replacement filter\n\nRegular changing of the Airfresh Clean Connect 500 air purifier filter ensures optimal air quality: The replaceable EPA pre-activated carbon filters are high-quality and collect pollen, dust, bacteria, viruses and ultrafine particles up to the size of 3 µm. Even unpleasant smells and gases are filtered from your air. In order to maintain the high cleaning performance, the filter display indicates that a filter change is required after approximately 4,320 operating hours. It is quick and easy to remove and replace\n- Replacement filter for the Airfresh Clean Connect 500\n- Three-layer filter system (pre-, EPA and activated carbon filters) removes >99.5% of all particles 3 µm in size, as well as smells\n- Ideal for allergy sufferers: The allergy-friendliness of the product has been certified by the European Centre for Allergy Research Foundation (ECARF)\n- Replacement is only necessary after approx. 4,320 operating hours\n- Quick and simple to remove and put back in