Lindahl was advisor to Air Holdings AB, one of the owners of Hygromedia, in connection with the sale of Hygromedia and Rotor Source to Munters. Hygromedia specializes in components to companies that manufacture dehumidification rotors in the US, Europe and Asia. Rotor Source provides products for industrial dehumidification and energy recycling to OEM-suppliers, mainly for heating- ventilation- and air conditioning systems (HVAC). Both companies are based in Baton Rouge, Louisiana, USA, and together have approximately 30 employees. In 2021, the revenue amounted to MUSD 11,5 (approx. MSEK 125).
Lindahls team consisted of Patrik Rindstål and Helena Lindbäck.