Air brake filters are essential components of pneumatic braking systems found in passenger cars and commercial vehicles. Located within the air supply line, these filters remove contaminants like water, oil, and particulate matter, ensuring clean, dry air reaches the brake actuators and valves. This filtration process maintains optimal braking performance and extends the life of critical air brake system components. Effective filtration prevents corrosion, icing, and valve malfunctions, contributing to overall vehicle safety and reliability. Examples in this category include filters from leading manufacturers like Wabco, as well as specific applications for MAN trucks, such as part number 51158015173 or 81.51201-0416. Maintaining a clean air supply is vital for consistent and dependable brake function.