Oxygen sensor recycling is one of the most important methods used by car owners to raise the efficiency of their engines. Air feelers are part of the exhaust system where they get exposed to many pollutants such as hydrocarbons, nitrogen oxides, and carbon oxides among others. These pollutants, coupled with frequent cooling and heating result to destruction of the air feeler. This article is a holistic account of how to recycle your air car feeler.