Filten, also known as Den Norske Papirfiltfabrikk A/S, is a historical landmark in Drammen. The factory was established in 1884 and has played a significant role in the development of paper felt production in Norway. The buildings that house the factory are characterized by industrial architecture from the late 19th century, and they represent an important part of the city's industrial history.
During its operation, Filten has been known for the production of paper felt, a material that has been used in various industries, including the textile and construction industries. The factory has helped shape working life in Drammen, and many generations have had their connection to the place. Today, the buildings are preserved as part of the city's cultural heritage, and they stand as a testimony to the industrial development in the region.