Always choose the right filter Compare energy labels with the filter simulator Calculate how much energy and money you can save using energy efficient air filters. Try our FREE filter simulator now Protect your engine with Ryco Air filters. Air filters can be compared to the ‘lungs’ of the engine removing dust and dirt in the air stream that can damage the engine and its performance.Operating under immense performance pressure an average vehicle engine breathes in approximately 10,000 litres of air for every litre of fuel consumed. If the air filter is blocked or dirty the filter’s ability to reduce dirt passing directly into the engine is greatly reduced.  The air filter plays the critical role in protecting engine wear which can lead to costly engine replacement.Ryco air filters are made to with stand the harsh Australian conditions, which are some of the most severe in the world. Across much of Australia dust particles are mostly silica based … one of the best abrasives around.