Fume Hood Testing (FHT)

NEBB Fume Hood Testing Certification

As more facilities are using fume hoods in their research laboratories, there is a demand for certified, competent contractors to make sure a facility’s fume hoods are operating effectively. Certification in Fume Hood Testing will offer hospitals, laboratories, and educational facilities proof of technical knowledge and skills to test fume hoods for effectiveness.

NEBB’s Fume Hood Testing Program certifies firms and qualifies individuals that meet criteria established by NEBB. NEBB’s new Fume Hood Testing Program is based upon the current testing requirements of the ASHRAE 110 Standard and the performance criteria of ANSI Z9.5—some of the most respected standards in the Fume Hood industry.

Purpose of Certification Program

The purpose of NEBB certification is to offer tangible proof of competent firms and certified professionals qualified in the proper methods and procedures for the various categories of NEBB certification.

Fume Hood Program Objectives

The following objectives were created for this purpose:

  • To establish industry standards, procedures and specifications for testing of fume hoods.
  • To set minimum educational standards and other requirements for the qualification of both certified professionaly personnel and technician personnel employed by firms who perform this work.
  • To establish educational programs for training certified professionaly personnel and technician personnel in the proper methods and procedures testing of fume hoods.
  • To certify as qualified for the performance and supervision of fume hood testing, those firms who meet the requirements for certification as established by NEBB, who agree to comply with the objectives of NEBB, and who employ certified professionaly personnel who have met the NEBB requirements of qualification.
  • To serve as a clearinghouse for educational and technical materials pertinent to fume hood testing work.

Fume Hood Testing Certification Requirements for Firms

In order to become NEBB Certified in Fume Hood Testing, a firm must:

  • Enjoy a reputation for integrity and responsible performance. Six letters of endorsement, five from consulting engineers, architects or building owners and the sixth may be from a contracting firm. All should reflect work that the applicant firm has completed. Firms who are already NEBB Certified in another discipline will not need these letters.
  • Be affiliated and in good standing with a local NEBB Chapter.
  • Possess the various instruments and equipment which are required; the local NEBB Chapter must visually confirm compliance.
  • Confirm in writing that it will conform to the NEBB guidelines for the calibration and maintenance of the instruments and equipment required.
  • Possess the current NEBB Procedural Standards for Fume Hood Testing.
  • Designate in writing the Designated Certified Professional who will represent the firm and be responsible for the supervision of fume hood testing work.

Fumehood Certification Requirements for Individuals

For the most current prerequisite, please email certification@nebb.org


A firm’s certification shall automatically be suspended when the firm no longer meets all of the NEBB certification requirements. The certification of a firm suspended may be reinstated by NEBB at such time as it again meets the requirements for certification. The period of suspension may be no longer than one year at which time the firm will lose its certification automatically. A certified firm must notify the local NEBB Chapter in writing within ten days of the temporary or permanent loss of a designated qualified certified professional.

Loss of Certification

Certification may be terminated for failure of the firm to abide by the objectives and performance standards of NEBB. Termination of certification by NEBB requires vote of the Board of Directors of NEBB provided that by similar vote the Board shall first find that certification is prejudicial to the best interests of the Bureau and provided further that the certified firm in question shall have had opportunity upon written notice of at least fifteen (15) days to show cause why the certification should not be terminated.

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