The Clean Office CARBON consists of a patented, electrostatically charged filter media (pattern comb) and an additional layer of activated carbon. The filter removes harmful substances such as ozone, benzol and toluol from laser printers, photocopiers and fax machines as well fine dust and unpleasant odours. Our new Clean Office CARBON filter has been tested by a Technical Inspection Agency TÜV Nord: The certificate confirms that the printer's performance will not be impaired. The filter has also been tested by fiatec - Filter & Aerosol Technologie GmbH. The result: the Clean Office CARBON removes 95% of the ozone present in the air in the office.