K&N’s newly packaged POWER KLEEN™ High Performance Cleaner and Degreaser was originally used to remove contaminants, road grime, and grease from its cotton air filters. It is now formulated to clean both your cotton high-flow air filters, as well as those troublesome and demanding cleaning jobs that make you cringe most. The POWER KLEEN™ cleaner is specially formulated to remove oil, lubricants, grease, grime, and other deposits from most surfaces including cotton air filters, painted surfaces, chrome, plastic and more!