
D2nox is a modular nitrogen oxide reduction system that does not interfere with engine technology and works without highly flammable substances. It simply and effectively reduces toxic nitrogen oxides by up to 90% to achieve compliance with IMO Tier III, with the EU NRMM regulation or the German BinSchAbgasV without increasing fuel consumption. The advantages of D2nox are not only the significant reduction of pollutants, but also considerable tax savings as NOx-taxation, as has been practiced in Norway for years, is gaining ground worldwide (expansion of ECA zones).
D2cats - Compressed Air Torque Support
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D2cats is probably the most efficient pneumatic motor. Its advantage is not only its low air consumption, but also its versatility! It can be configured as a classic compressed air motor or as a steam or even combustion motor and, in our view, will revolutionize the market.

D2holding GmbH was founded in 2018 with the aim of optimizing thermal engines to increase efficiency and service life and reduce fuel consumption.
"D2" has developed into a highly innovative efficiency technology company with a wealth of pioneering products, optimizations and ideas. The products D2nox and D2cats are marketed by the subsidiaries D2nox GmbH & Co. KG and D2cats GmbH & Co. KG respectively.