The topic of NOx and particulate matter currently dominate the discussion about the future of internal combustion engines. This applies to both Diesel and Otto engines. The integrated cl.air.tech exhaust system developed by adMONDO on the basis of a US patent and a nano filter technology developed in Halle can be used both for inexpensive retrofitting and for the original equipment of vehicles of all kinds. As part of the upcoming approval process, adMONDo has agreed to cooperate with both the Fraunhofer Institute Halle and the TU Dresden regarding the review of the concept as well as the necessary measurements for approval on the part of the KBA. After all, the concept presented by adMONDO of an integrated solution for the almost complete elimination of NOx and particulate matter has led to the considerable funding commitment of the states of Saxony-Anhalt and Saxony.