The Challenge - Polluted Air in Cities
Worldwide, many cities struggle with air pollution, as traffic and industries produce high concentrations of fine dust and nitrogen dioxide. In Germany and other countries, the exceedances of limit values are a constant source of discussion. Even driving bans are being put under consideration. In high traffic areas or places with large emissions and low air exchange, the exposure is especially high and the effect on human health is harmful.
This applies, for example, to busy streets and subway stations. People with respiratory illnesses, the elderly or children should not be exposed to high concentrations of particulate matter or nitrogen dioxide. Surrounding yourself with clean air is a quality of life necessity. In places where people are studying, working, shopping or spending their free time, it is important to be surrounded by clean air.
Where fine dust is particularly dangerous
- There is substantial air pollution at locations with busy road traffic or high emissions from chimneys where the exchange of air is low. This leads to problems with nitrogen oxides and violations of the fine dust limit values. Due to this, local authorities are now exposed to the risk of legal action.
- Fine dust pollution is particularly relevant at particular locations within cities. Very often, these higher emissions can be found at points where more people tend to be. This is true for large road junctions, railway stations, bus stops, or underpasses. The risks to health at these locations are especially high.
- For certain groups, the risks from pollutants are above average. People with respiratory diseases, elderly people, or children should not be exposed to increased concentrations of fine dust or nitrogen dioxide.
- Clean air is a basic requirement for quality of life. Wherever people study, work, shop, or spend their leisure time, they want to be surrounded by clean air. No one wants to be concerned about fine dust values.
Clean air for sustainable urban environments
Filter Cubes provide clean air
at pollution hotspots
The modular MANN+HUMMEL Filter Cube helps to improve air quality in places with high air pollution - such as traffic junctions or subways. Our technology can also be integrated in billboards for bus stops or railway stations.
The decentrally applicable technology is able to bind more than 80 percent of the NO2, O3 and fine dust contained in the ambient air that is drawn in. The core of the technology is a newly developed combifilter, which includes a filter layer that retains particulate matter. Due to the large surface area of the additional highly porous activated carbon media, NO2 and O3 is adsorbed very effectively at particularly low pressure drop and energy consumption.
Depending on the requirements, using a modular system means a number of Filter Cubes can be installed on top of each other to form a filter column. A filter column with three further developed Filter Cubes is able to clean 14,500 m³ of air every hour. The Filter Cubes are equipped with an intelligent mechatronic system architecture. Available sensors record air and weather data as well as the pollution level and transfer the data to a cloud. This way the filter system controls itself depending on operating and environmental boundary conditions and thus saves energy costs since the fan is only running when it is needed.
The first step of the project is the investigation of the surrounding area, where the Filter Cubes will be placed. This is followed by calculations by our experts at MANN+HUMMEL in order to carry out the project. The experts check where the particulate matter and the harmful gases is highest and how many Filter Cubes are needed according to that data. Afterwards, the local conditions are examined more closely and reasonable locations are selected for the filter cubes. With the help of a simulation, these plans are then checked by an independent engineering office.
A Filter Cube requires 1 m² of space and access to electricity. Depending on the location and customer requirements, a foundation and a data connection can be included. After the preparation of the infrastructure has been completed on site, the installation of the systems can begin. The finished filtration unit can be switched on and off instantly via remote access. This allows the impact of this procedure to be measured and tracked under consistent conditions. Depending on requirements and customer requests, we also take care of the maintenance of the filter system.