Lille Metro, Lille Flandres Station

In order to improve air quality in its underground spaces, the European Metropolis of Lille (MEL) has been trialing the Para-PM air treatment system since April 2025 at the Gare Lille Flandres metro station. Six Para-PM air filtration columns have been installed, two by two, in the station.
This experimentation is part of what the local authority describes as "an ongoing process of innovation and improvement of the living environment for public transport users. "
It is supported by Ademe, the French Agency for Ecological Transition, as part of the AACT-AIR 2024 call for projects, which assists local authorities in their studies to improve outdoor and indoor air quality.
ATMO Hauts de France, the regional air quality observatory, is also a partner in the project, focusing on measurement and analysis of results. A comprehensive system of sensors has been installed, along with a strict protocol to take into account seasonality, passenger numbers, and train traffic. The experiment is scheduled to run until the end of September 2025.

Photo gallery

OTHER PROJECTS

LYON METRO, SAXE-GAMBETTA STATION

Thanks to the support of SYTRAL Mobilités and the Metropole of Lyon, Para-PM has been trialed in the Saxe-Gambetta metro station. Initial results show an average reduction in Particulate Matters (PM10 and PM2.5) of around 30 to 40% in the station.

ANATOLE FRANCE SCHOOL IN SAINT-DENIS (93), FRANCE

An Aerophiltre depolluting shade, was inaugurated on 27 June 2024 in the courtyard of the Anatole France primary schools in Saint Denis (93).

“LA VICTOIRE” SCHOOL, PARIS 9TH DISTRICT

10 Para-PM air purifiers have been installed in the playground of the Victoire school in the Paris district 9th, as part of a real-life experiment supported by ADEME and the 9th arrondissement town council. The aim? To clean up the pollution in this area, so that children can breathe cleaner air when they're in the playground. This experiment was made possible thanks to the support of ADEME and the town hall of the 9th arrondissement of Paris.

SOLIDEO – Olympic Village

The Para-PM Technology was chosen in the SOLIDEO (Société de Livraison des Ouvrages Olympiques - French Olympic Delivery Authority) tender for the installation of the "Athletes' Square" in Paris Saint-Denis (France).