Air is required by all internal combustion engines as oxygen is required for the combustion of fuel. However, the air must be free from any dust and debris before it enters the engine because the particles can accumulate in the engine and can decrease its life. This is where air filters come in as they ensure that only clean air reaches your engine. At one point or another, every car needs to have its air filters changed because eventually residue will collect on these filters and they will no longer be able to perform their job properly.ÊYou should check you air filter regularly to see if they are clean. Using OEM original filters ensure that only properly filtered air reaches your engine, increasing its life and economy. Acura air filters are perhaps the best in the market as they are durable, and can filter extremely fine particles as well. You can find some of Acura's best air filters on our website.