The WABCO SS1200P oil coalescing air dryer features an oil coalescing filter that removes oil and contaminants from the air stream, which is crucial to maintaining clean air quality. Utilizing advanced desiccant technology, it maximizes moisture absorption from compressed air, preventing moisture buildup in air brake systems. This function is key in enhancing braking performance and extending the life of pneumatic components. Additionally, it ensures consistent air pressure, thereby contributing to smoother vehicle operations and overall system efficiency.