InnoTrans 2026: Cetim to Test Prototype R290 HVAC System for Trams in France

French industrial research and technology center Cetim is set to test a propane (R290) HVAC system designed for trams in Brest, France, this winter. Dubbed PropAir, the unit will replace HVAC systems currently using synthetic refrigerants. Cetim developed the new R290 system in partnership with French industrial manufacturers Wabtec and Devismes. The project is funded partially by the industrial developers and partially by the French government. Read the full story on NaturalRefrigerants.com