Which type of 'Pollution Control Devices' are fitted into automobiles for reducing the emission of poisonous gases?

Catalytic converters are fitted in automobiles to convert poisonous exhaust gases into less harmful ones.

Electrostatic precipitators remove particulate dust from industrial chimney gases, not vehicle exhaust.

Cyclone separators use spinning airflow to settle out heavier dust particles in industry.

Fabric filters, or baghouses, trap fine particles on cloth in factory emission control.

A catalytic converter turns carbon monoxide and unburnt hydrocarbons into carbon dioxide and water and reduces nitrogen oxides.

Its catalyst surface is usually made of platinum, palladium and rhodium.