HOLT CAT® offers a variety of stationary engine emissions reduction solutions to address particulate matter and nitrogen oxide emissions and assist customers with federal, state and local air emissions regulations compliance, including:

• Assure DOC Diesel Oxidation Catalyst;
• Assure OC Oxidation Catalyst;
• Assure Three-way Catalyst;
• Permit Filter System; and
• E-POD System to reduce PM and NOx emissions.

The answer is proven emissions control technology from CleanAIR Systems, a Caterpillar® company.  Since 1993, CleanAIR has been a trusted leader in the field of air pollution control, manufacturing catalyzed diesel particulate filters, oxidation catalysts, and selective catalytic reduction technology.  CleanAIR Systems maintains a high standard of quality and product integrity within every function of the manufacturing process, with an integrated manufacturing approach creating complete emissions control systems, helping you meet today's strict ambient air quality standards.