According to the World Health Organization, around 47,000 people in Germany die each year because of fine dust. Air pollution caused by fine dust is particularly high in urban areas. The fine dust alarm in Stuttgart has become well known throughout Germany. In fact, due to high air pollution, many cities around the world have introduced fine dust alarms. With nitrogen dioxide (NO2), people are exposed to a further health hazard, especially in cities. The filtration specialists at MANN+HUMMEL have developed technologies with which air pollution can be reduced.

New technology also reduces NO2 pollution

Filtration specialist MANN+HUMMEL has developed a technology which reduces nitrogen dioxide (NO2) at locations with high levels of pollution. A newly developed combifilter 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.

The new 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.

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Cities sound the alarm due to high fine dust emissions

This is because fine dust is harmful to human health. That is especially true with regard to the smallest particles (PM2.5), which can penetrate deep into the lungs and trigger illnesses. The largest source of fine dust in cities are traffic, households with furnaces, and industrial processes.

MANN+HUMMEL has been a filtration expert for over 77 years. Our R&D engineers continue to develop new methods to remove contaminants from air and liquids. Last year, we started specifically addressing the subject of fine dust in cities with the Fine Dust Eater project. Using fine dust filters at locations where there is a particularly high level of air pollution, or using fine dust filters for vehicles, we want to make a contribution towards achieving cleaner air. This is valid for the fine dust alarm in Stuttgart and also for other cities throughout the world.

How MANN+HUMMEL helps inner cities achieve clean air with filtration

MANN+HUMMEL has been a filtration expert for over 77 years. For us, filtration means separating the useful from the harmful. We are now applying our know-how and passion to clean the air around us in cities every day in order to achieve a better quality of life. We have developed the fine dust filters for this purpose, which are able to help regarding the fine dust alarms in Stuttgart and also with high vehicle emissions and protection for the vehicle occupants.

Using filtration technology to enable clean air in cities

Stationary fine dust filters contribute to reducing the fine dust pollution in cities at locations where there is a particularly high level of air pollution. This is true for locations such as the Stuttgart Neckartor, for railway stations, and for bus stops.
The selective application of fine dust filters from MANN+HUMMEL at kindergartens, hospitals, or retirement homes can help improve the health of these groups.

Tackling fine dust at the source

We also implement solutions at the source. For example, the newly developed brake dust filter from MANN+HUMMEL prevents the emission of 80% of the brake dust that a vehicle generates in the braking process. Mobile fine dust filters can be positioned on the roof or underneath buses or transport vehicles and retain 80% of the fine dust present in the air. These filters can be used to significantly reduce the vehicle emissions of a complete fleet of vehicles.

From fine dust to quality of life

Ultimately, we have a right to the best possible air, particularly at locations where we spend a lot of time. Fine dust filters in areas with numerous office buildings or leisure amenities and shopping facilities help to make the ambient air cleaner and enable a better quality of life.

Using our latest cabin filters, we also protect the occupants of different vehicles against pollen, nitrogen dioxide, and make vehicles the place with the best protection against fine dust in the city.

Contact Persons

Thomas Michalak
Sales & Business Development Manager - Fine Dust Eater