Hydrogen-based fuel cell systems are gaining prominence in various industries and transportation sectors as part of the push towards decarbonization. Purem by Eberspaecher is at the forefront, offering custom exhaust air systems tailored for efficient water management and compliance with noise emission regulations. These systems play a crucial role in harnessing the high energy density and emission-free operation of hydrogen fuel cells, particularly beneficial for long-distance trucks and stationary applications. The innovative technology ensures the removal of water vapor produced as a by-product, optimizing the performance of the fuel cell system. Water separators and silencers developed by Purem address key challenges in water management and noise reduction, enhancing overall system efficiency. Collaboration with AVL has validated the effectiveness of Purem's solutions, with demo trucks showcasing significant reductions in noise emissions. This success has paved the way for further trials and advancements in hydrogen fuel cell system solutions, demonstrating the ongoing commitment to sustainable and efficient energy technologies.