The FEF 0 and FEF 1 air filters, with capacities up to 400 l/min and connections up to DN 55, operate from -30°C to +100°C. They are effective in hydraulic and lubrication systems, preventing initial damage to pumps and components, thanks to special filter materials. They offer filtration options of 10 μm (paper) or 3 μm (microglass).