+A catalytic converter is an exhaust emission control device that transforms harmful pollutants from an [Engine](/wiki/engine)'s exhaust gas into less toxic substances. It uses a [Catalyst](/wiki/catalyst) to facilitate chemical reactions, significantly reducing air pollution.
+## See also
+- [Exhaust Gas](/wiki/exhaust_gas)
+- [Air Pollution](/wiki/air_pollution)
+- [Emission Control](/wiki/emission_control)
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