12. February 2019 | Indutech/Filtech

Filter Cubes could help to avoid driving bans

Filter Cubes III
In the future, Filter Cubes III from Mann+Hummel will also collect nitrogen dioxide from the air at the Neckartor in Stuttgart
Source: Mann+Hummel

Ludwigsburg, February 7, 2019. Today, at its headquarters in Ludwigsburg, filtration specialist MANN+HUMMEL presented a technology which reduces nitrogen dioxide (NO2) at locations with high levels of pollution. At the end of last year, Filter Cubes from MANN+HUMMEL were successfully installed at the busy Neckartor road junction in Stuttgart to reduce the level of fine dust pollution. The filter specialists have now further developed the technology and integrated a newly developed combifilter medium. The medium retains fine dust and also filters NO2 out of the air. The innovation helps to protect the people’s health and could make driving bans in inner city areas unnecessary. The Filter Cubes, which were installed last year at the Neckartor road junction in Stuttgart, will be adapted to include the new technology by the summer of 2019. Before the end 2019, the further developed filters will also be used in a pilot project in Ludwigsburg.

Less NO2 through use of activated carbon

The newly developed combifilter includes a filter layer that retains particles and additional activated carbon layers to adsorb NO2. In this process, highly porous
activated carbon media are used, and due to their large surface area, are able to efficiently absorb NO2. The technology is characterized by a particularly low
drop in pressure. As a result, it is able to efficiently clean the air while using a low amount of energy. The Filter Cubes include combifilters and also fans to
draw in the ambient air. The filters are able to bind more than 80 percent of the NO2 and fine dust contained in the ambient air that is drawn in.

edited by Petra Gottwald

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