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About Jeff Weed


Mr Weed was employed by TSI Incorporated for over 28 years (1979-2008).  He spent his first six years there as manufacturing manager in charge of instrument manufacturing.  In 1985 he moved into marketing and served as the applications expert for TSI instruments including air velocity meters and mass flow meters.  When the PortaCount® Respirator Fit Tester Model 8010 was introduced in 1987, Jeff 's career became focused on respirator fit testing and has remained so ever since.  Mr. Weed guided TSI during the 20-year evolution of the PortaCount, including the development of the second-generation PortaCount® Plus Model 8020 introduced in 1991 and N95-Companion™ accessory introduced in 1998.  The development and frequent maintenance releases of TSI FitPlus™ Fit Test Software were also driven by Mr. Weed.  It's no exaggeration to say that Mr. Weed "wrote the book" on the PortaCount, as he in-fact did author the instrument manuals, many associated application documents, and magazine articles.

Jeff Weed's fit testing expertise is not limited to the PortaCount or quantitative fit testing (QNFT).  In 1987 he became a member of the ANSI Z88.10 subcommittee on respirator fit test methods that resulted in the publication of the consensus standard, ANSI Z88.10-2001 Respirator Fit Test Methods.    Jeff also participated in the next revision of that standard (ANSI Z88.10-2010) as co-chairman.

Mr. Weed is also an active member of other respiratory protection oriented organizations including the AIHA Respiratory Protection Committee and the ISRP, International Society for Respiratory Protection.

Mr. Weed had the honor of serving on the advisory board for the NIOSH No Fit Test Respirator Workshop administrated by the University of Minnesota in 2008.


B.S. Mechanical Engineering, Lafayette College

(PortaCount®, N95-Companion™ and FitPlus™ are trademarks of TSI Inc.)

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