Assay Technology, Inc, AT Labs, and Miller-Nelson

The Technology Leader in Personal Monitoring Badges

The most cost-effective and convenient way to monitor chemicals in a worker's personal breathing zone.

The Assay Technology Experience

We provide the most convenient and broadest range of air samplers, at the best price.

We specialize in chemical challenge testing of respirator cartridges,

filters, or any media designed to remove chemical contaminants from an air stream.

The Miller-Nelson HCS-501

is the standard atmosphere generator referenced in NIOSH and other standard test procedures for evaluation chemical capacity of respirator cartridges.

What’s New?

A Little Change is Good

We are excited to announce a pair of packaging improvements coming soon to our boxes Read More …

Tips of the Month

Searching Our Website

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Assay Technology 525 Organic Vapor Monitor

Steve’s Technical Corner

The Secret Lives of Field Blanks

About the Company

Assay Technology desires to maintain its long-held position as technology leader for personal monitoring of chemicals in the workplace.

Assay Technology Lab

We are the technology leader in personal monitoring badges, the most cost-effective and convenient way to monitor chemicals in a worker’s personal breathing zone.
We also have laboratories in our two facilities. AT Labs operates AIHA-LAP, LLC accredited labs which provide personal air samplers to industrial hygienists and analyze the contents of returned samplers.

Miller-Nelson Laboratory

Miller-Nelson Laboratory has been testing air purifying respirators since 1972 and has performed over 17,000 individual tests using over 450 different materials. Currently we perform all the NIOSH and European gas and vapor respirator qualification tests for the vast majority of respirator manufacturers, as well as their suppliers of sorbents. We also have provided service life information to over 500 end users.

Learn More

Check out our SmartBadge App! This app makes you and the badge smarter.

Completing your Lab Request Form with this app is a snap! Free download from the iTunes Store (iPhone) or the App Store on Google Play (Android). And for an added bonus, get access to your reports 24/7. Learn more!