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.

Kistler O'Brien Fire Protection Bethleham , PA   Phone: Fax:

Q32,Q5E

Guy Schwartz, Level 2 Robert Grace, Level 2 Steve Schneider, Level 4 Gary Petresky, Level 3 Greg Chomitzky, Level 2 Ken Michaels, Level 2 Corey Frommer, Level 2 Nathan Hahn, Level 2

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.

Suppression Systems Inc. 301 S 4th St Pennsburg , PA  18073 Phone: 215-679-6291 Fax: 215-679-6028

extra gauges,E5A,970,970 Refurb,E5A

Gary Petresky, Level 3 Todd Cranmer, Level 2 John Helwig, Level 2 Joseph P. Bonner, Level 2 Eric Krock, Level 2 Scot Smith, Level 2 Craig Moyer, Level 2 Mark Vestal, Level 3

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.

Extinguishing Systems, Inc. 3023 West Liberty Ave Pittsburgh, PA  15216-0948 Phone: (412)531-2300 Fax: (412)531-2735	Q5E	Edward Hammill, Level 2
H & H Fire Protection Inc 53 Airport Road Pottstown, PA  19464 Phone: (610)495-5688 Fax: (610)495-5968	Q5E	David P Butts, 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.

There are no companies with Level 1 testers in your area.

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.

Aven Fire Systems Inc New Castle PA   Phone: Fax:	970HP
Fire Fighter Sales & Service Pittsburgh PA   Phone: Fax:	970