LYON METRO, SAXE-GAMBETTA STATION

Thanks to support from SYTRAL Mobilités and the Lyon Metropolitan Area, the Para-PM system was tested at the Saxe-Gambetta metro station beginning in October 2024. Para-PM modules—an innovative system for capturing fine particulate matter designed for large volumes of air—were installed on each platform. Measurement sensors were deployed in the station in collaboration with ATMO Auvergne-Rhône-Alpes, the regional air quality observatory. The goal of the pilot program was to significantly reduce PM2.5 levels in the station in order to provide cleaner air for passengers.

Photo gallery

OTHER PROJECTS

Lille Metro, Lille Flandres Station

To improve air quality in its underground spaces, the European Metropolis of Lille (MEL) tested the Para-PM air treatment system from April through October 2025 on the central platform at the Gare Lille Flandres station (Lines 1 & 2). Result: a significant and measurable reduction in fine particulate matter pollution in the Lille metro system.

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).