Retrotec Certification for Single Blower Door Operation with DM32

Manufacturer certification on the new and easy to learn touch screen gauge.

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Single Blower Door Operation Course with DM32 gauge

Course Information:

Course Part Number: TR264
Course Title: Retrotec Certification for Single Blower Door Operation with DM32
Completion Time: ~2-4 hours
Availability: Year Round, Online
Prerequisites: None
Course Website: Please contact for your username and password.
Once you get your username and password, follow the instructions in the email to access your course.


Learn the principles of blower door testing including how to set up, operate, and troubleshoot your equipment for Code compliance. Upon successful completion of this course, technicians will receive Retrotec’s “Manufacturer's Certificate” which qualifies them to operate a Retrotec residential blower door testing system. This course is recognized in numerous states and counties as certification to complete a test on a residential blower door system. We do recommend you check with your local officials as to the specific requirements in your area.

The trainee must get 100% of the 28 multiple choice questions correct to pass.  You may retake the exam numerous times. 

The Certificate is signed by Colin L. Genge, President of Retrotec Inc. who has created test methods and designed duct leakage measurement systems for over 30 years.

Recertification is available at any time to maintain training credits or as a refresher.


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