The BF 7 SL, BS 7 SL, BE 7 SL, and B 7 SL series air filters, with nominal sizes ranging from 45/21, 90, and 130, are designed for filtering and dehumidifying intake air in industrial systems. Their connections support up to DN 32 and they operate in temperatures from -20℃ to +100℃. These filters are essential for preventing initial damage to pumps, bearings, and system components.