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What exhaust emissions do catalytic converters reduce?

* Hydrocarbons (HC): These are unburned fuel molecules that escape from the engine. They can react with other pollutants to form smog.

* Carbon monoxide (CO): This is a poisonous gas that is produced when fuel does not burn completely.

* Nitrogen oxides (NOx): These are harmful gases that are formed when nitrogen and oxygen in the air react at high temperatures. They can cause respiratory problems and contribute to smog.

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