Question

which instrument is used to reduce air pollution

Answer 1

Electrostatic Precipitators
An electrostatic precipitator is a type of filter that uses static electricity to remove sootand ash from exhaust fumes before they exit the smokestacks.Unburned particles of carbon in smoke are pulled out of the smoke by using static electricity in the precipitators, leaving clean, hot air to escape the smokestacks.It is vital to remove this unreacted carbon from the smoke, as it can damage buildings and harm human health - especially respiratory health

Answer 2

Air pollution control device are a series of device that work to prevent a variety of different pollutants both gaseous and solid from entering the atmosphere. Hope it will help u