Level 4 Enclosure Integrity Testers
These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 3 certified technician who has been certified to conduct the NFPA blower door test procedure.
Level 4 testers are certified on ISO testing and advanced pressure venting tests, both using complicated multi-point techniques.
Level 3 Enclosure Integrity Testers
These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 3 certified technician who has been certified to conduct the NFPA blower door test procedure.
Level 3 testers are certified to perform multiple blower tests for large enclosures, NFPA lower leak measurement using ceiling neutralization, extended discharge systems and sub-floor only testing.
Level 2 Enclosure Integrity Testers
These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 2 certified technician who has been certified to conduct the NFPA blower door test procedure.
Level 2 testers are certified on the NFPA single blower door fan tests & field calibration tests.
Armstrong Extinguisher Service Phone: | J63C | Jerry Armstrong, Level 2 |
Level One Certified Techniciains
These companies own door-fan test equipment and Windows software for testing enclosure integrity. They employ at least one Level 2 certified technician who has been certified to witness the NFPA blower door test procedure.
Level 1 testers are trained in enclosure theory & design, and are certified to witness but but not perform the NFPA blower door test.
Companies that own Retrotec Equipment but don't have registered technicians.
Companies listed below own Retrotec equipment, but have not been certified by Retrotec to perform the NFPA blower door test.
Sigler Fire Equip Phone: (605)332-7181 | 955 |
