CPI brings more than five decades of experience designing, building, and supporting regenerative thermal oxidizers (RTOs), catalytic oxidizers, and thermal oxidizers for VOC compliance to manufacturers across Indiana. Since 1969, our systems have delivered thermal efficiencies above 97% and destruction removal efficiencies above 99% at facilities throughout the United States, with aftermarket support handled entirely by CPI's own team.
CPI designs and builds oxidizer systems — we are not a permitting firm, and every Indiana facility's permit obligations depend on details specific to that site. Engaging an air permitting professional who is familiar not just with federal requirements, but with Indiana's air quality rules, is strongly recommended.
Here's how CPI fits into that process:
Whether your Indiana project runs through an outside environmental consultant, an in-house EHS group, or your engineering team, CPI works alongside them, offering:
Environmental consultants can find CPI's dedicated resources, including project support details and client examples, here: Environmental Consultant Resources →
"They provided what we felt was one of the easiest technologies to implement, and for the environmental agency to understand — our permit went through in record time." — Process Engineer, Specialty Chemical Manufacturer
CPI's aftermarket service is performed by direct CPI employees — not third-party contractors — so Indiana facilities get factory-trained technicians who know CPI equipment inside and out.
Yes. CPI designs and manufactures custom RTOs, catalytic oxidizers, and thermal oxidizers for Indiana manufacturers, built on successful implementations throughout Indiana and nationwide.
Yes — CPI oxidizer systems are installed and operating at Indiana facilities, permitted and accepted by IDEM. That in-state history means Indiana regulators are already familiar with how CPI designs and documents its systems.
Possibly. Indiana offers streamlined alternate approval paths - a Registration or a Rule 10 approval - for smaller sources with limited potential to emit, rather than a full construction and operating permit. Whether your facility qualifies depends on site-specific factors your permitting consultant, EHS team, or engineering group can evaluate.
Yes. CPI services most makes and models of regenerative thermal oxidizers, catalytic oxidizers, and thermal oxidizers, not only the systems we built ourselves.
No. CPI is not a permitting firm. We recommend confirming your specific requirements with an environmental consultant, EHS resource, or engineering team - CPI's role is supplying the oxidizer information that process depends on.
Yes. CPI works closely with environmental consultants on BACT/MACT analysis and project support, backed by a proven track record of oxidizers already operating in Indiana.
See where CPI provides oxidizer aftermarket service by state: CPI Oxidizer Resource Center — All Locations
CPI's Core Technology:
Regenerative Thermal Oxidizers | Thermal Oxidizers | Catalytic Oxidizers
For Environmental Consultants, EHS & Engineering Teams:
Environmental Consultant Resources & Support →
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