Mack Trucks is offering retrofit diesel particulate filters to allow operators of older-model Mack trucks to meet stringent new emissions requirements from California environmental regulators. New ...

The California Air Resources Board has certified Engelhard Corp.'s DPX catalytic particulate filter for use in diesel retrofits. CARB verified that DPX filters reduce diesel particulate matter, or ...

One way car manufacturers can reduce their vehicles' harmful emissions is through particulate matter filters. Particulate matter refers to the most common and harmful mixture of pollutant chemicals ...

The Owner-Operator Independent Drivers Association has sued the California Air Resources Board over the agency’s requirement that 2006 year-model and older trucks be retrofitted with a particulate ...

Under-hood, muffler-replacing Active Diesel Particulate Filter (DPF) is certified to CARB's Level 3 Plus, for greater than 85% reduction in particulate matter Nett not only developed and verified the ...

Urban bus fleets and on-highway trucks can significantly reduce particulate matter (PM) emissions by as much as 94% from their vehicles simply by retrofitting with ECS Purifilter diesel particulate ...