9661 U.S. Highway 36
P.O. Box 649
Lyons, CO 80540
(303) 823-6661

[email protected]

Baseline products stand out as a gas detection leader who has set the standard for quality and reliable measurement of gases. From bench-scale to desktop to handheld instruments, our products are used in laboratory R&D, process monitoring and control, and final quality checks.


630 Plaza Drive, Ste. 100
Highlands Ranch, CO 80129
(720) 344-3500

ATC Group Services LLC

221 Rue De Jean
Lafayette, LA 70508
(470) 636-2659


415 Lawrence Bell Drive, Unit 4
Buffalo, NY 14221
(800) 366-2966
[email protected]

Casella is dedicated to reducing environmental and occupational health risks by developing equipment and technology for dust, noise, and vibration monitoring. Casella’s range of instrumentation includes real-time dust monitors, personal sampling pumps, sound level meters, personal dosimeters, and hand-arm vibration and fence-line monitors.


680 Fairfield Court
Ann Arbor, MI 48108
(734) 761-1270 and (800) 521-2978

ENMET specializes in medical air, environmental and industrial health and safety monitoring instruments. Products range from compressed breathing air monitors and continuous systems to our autonomous gas chromatograph for facility and community monitoring of trace levels of toxic chemicals. We provide expert technical assistance, problem assessment, product selection, and advice on system installation.

Environmental Devices Corp.

Fieldstone Industrial Park
4 Wilder Drive #15
Plaistow, NH 03865
(603) 378-2112
[email protected]

Environmental Devices Corp. is a manufacturer of precision scientific instrumentation specializing in real-time air quality monitoring. Since its incorporation in 1990, EDC has designed and commercialized several advanced product lines of air monitoring equipment. All products are highly portable, lightweight, and compact.

Gas Clip Technologies Inc.

305 W. FM 1382, Ste. 540
Cedar Hill, TX 75104
(972) 775-7577

Gasmet Technologies Inc.

956A The Queensway
Toronto, ON M8Z 1P5
(416) 354-2377

[email protected]

The GT5000 Terra is the world’s smallest portable FTIR multi-gas analyzer, measuring 50 gases simultaneously at sub-ppm levels. Using its powerful Identification Tool, mystery odors can also be identified within minutes of arrival on site. Provide nearinstant results and promptly resolve worker air quality issues!


54 Nonset Path
Acton, MA 01720
(978) 263-4044

HNU-PID Analyzers LLC

2 Washington Circle #4
Sandwich, MA 02563
(774) 413-5281
[email protected]

HNU manufactures portable, hand-held, and fixed continuous monitors for a variety of industrial hygiene and workplace safety applications. Featured products include hand-held GC for the specific measurement of benzene and other toxic gases, FIDs, PIDs with ppb range, multi-detector portable GCs, and fence-line monitors with remote data collections.


400 Summit Drive
Burlington, MA 01803
(314) 286-8355
[email protected]

The Life Science business of Merck KGaA, Darmstadt, Germany, which operates as MilliporeSigma in the United States and Canada, has some 21,000 employees and 59 manufacturing sites worldwide, with a portfolio of more than 300,000 products focused on scientific discovery, biomanufacturing, and testing services.

Nanozen Industries Inc.

25 E. 6th Ave., Unit 202
Vancouver, BC V5T 1J3
(844) 626-6936
[email protected]

Founded in 2007, Nanozen delivers innovative solutions for aerosol exposure analysis in industrial workplace environments. Nanozen’s DustCount real-time, wearable, personal dust monitors offer unparalleled capabilities that help drive improved airborne particulate analysis, worker protection, and timely corrective action in the occupational health and safety industry. Know the air you breathe!

S.E. International Inc.

P.O. Box 39, 436 Farm Road
Summertown, TN 38483
(931) 964-3561
[email protected]

S.E. International Inc. is the manufacturer of the Radiation Alert® product line offering handheld ionizing radiation detection equipment for surface and air contamination. Survey meters, dosimeters, area monitors, multichannel analyzers (identifiers), and a variety of radiation response kits. Free software, calibration reminder service for your Radiation Alert products.

SGS Galson

6601 Kirkville Road
East Syracuse, NY 13057
(888) 432-5227
[email protected]

SGS is the world’s leading inspection, verification, testing, and certification company. A member of the SGS group, SGS Galson is the world leader in industrial hygiene analysis and monitoring solutions. We work with OHS&E professionals in selecting the most effective means to obtain data to protect
people from hazardous exposures.

SKC Inc.

863 Valley View Road
Eighty Four, PA 15330
(724) 941-9701
[email protected]

SKC sampling solutions and expertise support your critical mission to protect worker health and safety. Our science has served occupational health and safety professionals for over 55 years. That science produces best-in-class sample pumps, media, size-selective samplers, surface and dermal testing kits, noise instruments, and technical support. Science. Serving People.

Stat Peel

10249 S. 2165 E.
Sandy, UT 84092
(801) 308-8387

TSI Inc.

500 Cardigan Road
Shoreview, MN 55126
(651) 490-3824


4020 Lake Washington Blvd. NE, Ste. 200
Kirkland, WA 98033
(425) 368-0969

Zefon International Inc.

5350 SW First Lane
Ocala, FL 34474
(352) 854-8080
[email protected]

From asbestos cassettes to pre-weighed filters, Zefon provides the OEHS professional with the highest quality products in air sampling media. Providing reliable and worry-free sampling media and equipment is our commitment to you and your profession. Zefon is the Professionals’ Choice.