Equipment that filters 3,500m3 of air per hour with moss

The CityTree outdoor filter not only corrects pollution in the surrounding area, but also helps to reduce the air temperature by 2.5 degrees Celsius.

In order to solve the problem of air pollution, the German company Green City Solutions developed outdoor filters utilize the capabilities of one of the organisms most powerful air filter proliferation of nature - moss , Cnet on 23/10 put believe. Mosses convert pollutants into biomass, which literally eats up pollutants, according to Liang Wu, co-founder of the company.

The CityTree filter cleans and lowers the air temperature. (Photo: Green City Solutions)

To implement this solution, Green City Solutions designed an environment suitable for moss to grow in the city. The new device, called CityTree, is introduced as the world's first biotech fine dust filter for urban spaces.

CityTree can reduce fine dust pollution in the surrounding area by up to 53%. This device filters 3,500 m3 of air per hour, which corresponds to the amount of air inhaled per hour by about 7,000 people. In addition to filtering fine dust, the filter also helps to reduce the air temperature by up to 2.5 degrees Celsius through evaporation from the moss surface. To maintain filtration and cooling capacity, the unit needs about 4 liters of water per hour and 120 watts of electricity.

CityTree is also equipped with sensors that can detect the type and degree of pollution of the surrounding space. This data will be useful for identifying key pollution sources, helping to revise policies and organizing community campaigns.

Green City Solutions also provides an integrated LCD product called CityBreeze to display advertisements or notices to the public. The company hopes that in the future, the money from advertising can make up for the rent of the equipment, helping people living in the surrounding area enjoy clean air without having to pay for themselves. Another product called WallBreeze, a modular moss wall, is also under development and is expected to be completed early next year.

CityTree also has some limitations. In heavily polluted areas, pollutants can destroy moss. Liang said the company has not installed filters in such places yet, but he believes this could eventually become a reality thanks to technological progress. Currently, CityTree has appeared in a number of European cities such as Berlin, Oslo, London, Paris and Cork.