vhbw - the clever way High-quality, precision-design exchange filter for your air purifier - Made from selected materials - Ideal for allergy sufferers With our replacement filters, you can quickly and easily change your filter to ensure high-efficiency filtration performance in your air purification unit. It is recommended that the filter be replaced every 6 - 12 months (depending on frequency of use). CONTENT OF DELIVERY: - 2x combi-filter fine pre-filter+HEPA+active carbon TECHNICAL DETAILS: - Diameter: 41 cm - Height: 13.5 cm - Particulate filter class: PM10 - Weight: approx. 2185 g - Colour: black - Replacement cycle: approx. every 6 - 12 months REPLACEMENT FOR Ideal 8741099 vhbw - High-quality replacement parts and accessories to prolong the service-life of your electronic devices.