Many major automobile and engine manufacturers rely on the expertise of MAHLE for air filters—for good reason: engine performance, torque, low consumption, and minimal emissions require well-filtered air. And our cellulose (paper) filters, plastic non-wovens, or a combination of both can trap just about everything. They capture up to 99.98% of toxic dust, soot, and tyre particles. The finest filters trap nearly all particles larger than 3 µm. This means that MAHLE air filters prevent premature wear of valves, cylinder surfaces, piston rings, bearings, and other engine components.