NOx Reduction

EPA reviewed and accepted Achieves 75% NOx reduction for up to 70,000 miles

Cleaner Air

Bringing cleaner air today to disadvantaged communities

Cost Effectiveness

Cat-A-Pass is more cost effective than similar diesel retrofit programs.


Providing the clean air of tomorrow’s electric vehicles NOW
CataPass™ is a low-cost, durable additional catalytic converter that reduces existing emissions by 70%. This significantly reduces the concentrations of NOx and VOC, two pollutants which lead to smog, ozone and PM 2.5 formation. Reducing these pollutants brings the clean air of EVs to disadvantaged communities for whom EVs are too expensive.