If you have any questions regarding your equipment, please feel free to contact our Customer Service Department. We provide 24/7 phone support, so give us a call at 507.451.2198, option 3 or send us an e-mail at

Documents are available on all of CDI's major products for your convenience, these documents are saved in Adobe PDF format unless otherwise noted, Adobe Acrobat is required to view these documents, you can download and install Adobe Acrobat Reader here at no cost.

Application Brochures

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           Why Buy CDI?

Critical Process Food Grade Dehumidier Series 

Critical Process Rooftop Series - CPRT  (Critical Food Process Air Handling)


DS (Dry Surgery) - DOAS System

DC (Dry Climate Desiccant Dehumidifier Series)

 DH (Dehumidification Series)

CDH (Custom Dehumidification Series) 

MDH (Make-Up Air Desiccant Series)

Washable UVGI Systems

Published Articles


Tech Notes

Warranty Information