Ventilation systems require energy to move and heat the air. Humidification and dehumidification processes are particularly energy intensive due to the high evaporation/condensation heat of water. Textile membrane heat and material exchangers based on liquid sorption are an energy-saving alternative.

The aim of the research project was to develop hydrolysis and chemical resistant hot melt adhesive composites for process air and air conditioning applications, taking into account hygiene requirements.