Clean Air is a world leading catalyst manufacturer for vehicle and stationary exhaust emission control and a leader in catalytic systems

emission control technologies

What we do

  • Light Duty – a world leading manufacturer of catalysts for cars and other light duty vehicles powered by all types of fuel
  • Heavy Duty – manufacturer of catalyst systems for diesel powered trucks, buses and non-road machinery

How we add value

We develop high technology catalyst formulations and systems to meet legislated limits for emissions around the world.

Key figures 2016/17

Sales (excluding precious metals) £2,224m
Underlying operating profit £318.2m


Find out more

Find out about our other divisions:

Read about our sustained growth and value creation.