The CityCarb compact filters are 2 in 1 solution with particle- and molecular filtration in the same media. CityCarb are installed in both new and existing installations. It´s easy to replace standard particle filters with the CityCarb to improve the indoor air quality (IAQ) in applications such as office buildings, shopping centers, schools and other public buildings situated in urban areas with heavy traffic. The CityCarb CH is specially designed to protect artefacts in museums, archives and galleries.