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Three Way Filter (TWF®)

Mobile emission controls: Johnson Matthey's Three Way Filter (TWF®) technology can reduce particle numbers by up to 99%.

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Three-way catalyst

Mobile emission controls: three-way catalysts for cars, vans, light trucks and motorcycles.

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Methane oxidation catalysts

Clean air solutions: our system offers cost-effective, low-temperature oxidation of methane from active and abandoned coal mines.

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Halocat

Our Halocatâ„¢ SC29 PTA emission control catalyst reduces air pollution from PTA manufacturing plants to meet clean air emission standards economically.

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