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Fume Hood Calibration Services

Periodic testing and calibration of fume hoods is one of the most important pieces to maintaining an effective operation and the health and safety of research staff. 

fume hood calibrationGL Technologies has established a reputation for specializing in the integrity and calibration of fume hoods for laboratories.  GL-Tec’s team is U.S. qualified and certified to complete fume hood calibration performance testing in a manner that exceeds the ANS/ASHRAE 110 standard.

NEBB Certification in Fume Hood Testing offers hospitals, laboratories, pharmaceutical companies, and educational facilities tangible proof of a firm’s technical knowledge and competency to test fume hoods for safety and effectiveness in a truly comprehensive manner.

The requirements to earn the NEBB certification for fume hood testing (FHT) are the most demanding and rigorous in the industry. Contact us today to take advantage of this expertise!

What is Fume Hood Calibration?


Fume hoods are utilized to properly evacuate materials that might lead  to air quality problems and to related negative health effects. In order to operate properly, a well-balanced face velocity flow is crucial to ensure adequate chemical removal, while not over-ventilating at the cost of the resultant reconditioning of exhausted air (an energy cost that can      be quite significant). US OSHA recommends utilizing a fume hood, or alternate local ventilation device, when working with any volatile substance with a TLV <50ppm1.                          

In schools and laboratories, volatile substances often react leading to the creation of gases or odors.

How often should fume hoods be tested?

GL Technologies performs a functional performance test to assure hoods perform as required about every 18 months. The performance test typically includes an evaluation of the face velocity, the sound, containment, monitor performance and the tracking ability of a VAV (when applicable).        

About GL Technologies


GL Technologies can fully setup a compliant program including method development, Identification of items to calibrate in a facility or on a system, tolerance assignment, calibration cycle determination, and SOP design. Our management has personally been audited by and developed programs that have been audited by the FDA, FDB, European, and Asian Regulatory Authorities. We specialize in the placement of personnel on sites and are often used to vet potential new hires for Biopharmaceutical and Medical Device companies. GL Technologies has placed over 180 individuals at sites in California and abroad. There are no fees or penalties for the full time hiring of these individuals. Most of the current CA Biopharmaceutical programs are now managed and staffed by former GL team members.