OHD

OHD

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OHD specializes in the instrumentation and software to help protect your employees’ health and manage occupational risks.

OHD is the manufacturer of the QuantiFit2 - the fastest and most accurate fit testing device on the market. Occupational Health Dynamics offers a range of products and services to help you protect your employees and manage your occupational risks. Whether you are looking for The QuantiFit2 Respirator Fit Tester, Noise Dosimeters, Audiometer, Vision Screener, Breath Alcohol Instruments, or a Sound Level Meter, we can provide you with a complete solution.

Photos from OHD's post 10/02/2026

That’s a wrap on a successful OHD Europe Sales Workshop in Warsaw!

It was a pleasure to welcome our European distributors to the OHD Europe office for a few productive days together. It gave us a chance to step away from the usual calls and emails and spend some real time together, talking through what we’re seeing in our different markets and where we go from here.

A big thank you to Shawcity, BA-Systemen, SCHAUENBURG Industrietechnik GmbH, deconta, Firekraft, Eximo, Recom Industriale, Casella España, ABT Sweden AB, Sedulitas, and ASTQ for making the trip to Warsaw.

It was great having everyone together, and we’re leaving Warsaw excited about what’s ahead!

Photos from OHD's post 09/30/2026

We’re in Tacoma for the Governor’s Industrial Safety and Health Conference!

Long Yang is on site connecting with safety and health professionals from across Washington and showcasing solutions from OHD and our partners.

Stop by to meet Long and get a closer look at:
🔹 AeroFit® respirator fit testing instrument for disposable and elastomeric respirators
🔹 QuantiFit2™ respirator fit testing instrument for elastomeric respirators
🔹 Gilian® air sampling pumps and calibrators by Sensidyne, LP
🔹 SVANTEK noise and vibration monitoring equipment
🔹 Gilian Dustlight personal dust monitor
🔹 SlateSafety Personal Heat Stress Monitor

If you’re at GISHC, come say hi and check out the equipment in person!

09/28/2026

Step behind the mask with OHD as we take a closer look at some of the most popular respirators on the market! In this episode of Behind the Mask, OHD CEO Luke Allen spotlights his favorite features of the 3M™ Scott™ AV-3000 and 3M™ Scott™ AV-3000 HT Respirators and discusses their fit and feel with Booth Armstrong, OHD’s VP of Sales.

Using the industry-leading QuantiFit2 Respirator Fit Testing Device, we walk you through how to properly perform a fit test and share our expert insights on performance, comfort, and usability.

Want to learn more about the QuantiFit2? Check out ohdglobal.com/product/quantifit2/

👉 Check out more Behind the Mask videos on other popular respirators. Link in the comments.

09/25/2026

Did you know?

OHD is the only global manufacturer that produces both quantitative respirator fit testing technologies recognized by OSHA and ISO: Controlled Negative Pressure (CNP) on the QuantiFit2™, and Condensation Nuclei Counting (CNC) on the AeroFit®.

Different technologies. Same precision. One trusted source.

Not sure which technology best fits your program? Take our quick “Find Your Fit” quiz and discover the right fit testing solution for your team in just three easy steps:
https://ohdglobal.com/find-your-fit/

09/23/2026

Loose-fitting PAPRs have gotten a lot of attention as fit testing requirements expand, but “no fit testing required” isn’t necessarily a benefit.

In our blog, we unpack the real tradeoffs behind loose-fitting PAPRs, protection factors, and what convenience can quietly cost in higher-risk environments.

👉 Read the full perspective: https://ohdglobal.com/paprs-fit-testing/

Photos from OHD's post 09/22/2026

Congratulations to Shawcity on 50 years!

OHD was proud to be part of the celebration, with Adam Marczak representing our team at the VIP Experience. Guests had the opportunity to see the QuantiFit2 and AeroFit Respirator Fit Testers on display, alongside Gilian air sampling equipment from our partners at Sensidyne, LP.

We’re grateful for our partnership with Shawcity and for the opportunity to celebrate such an exciting milestone together. Here’s to 50 years and many more!

Photos from OHD's post 09/17/2026

Last week at the 37th Annual Hazmat Workshop in Sacramento, Long Yang held it down at Booth 38.

He spent three days connecting with hazmat and safety professionals from across the country and providing demos of:
🔹 AeroFit® respirator fit testing instrument for disposable and elastomeric respirators
🔹 QuantiFit2™ respirator fit testing instrument for elastomeric respirators
🔹 Gilian® air sampling pumps and calibrators by Sensidyne, LP
🔹 SVANTEK noise and vibration monitoring equipment
🔹 ...and more

Thanks to everyone who stopped by. We loved the conversations. (The rambutans didn't hurt either.😉)

09/16/2026

The wait is over. Gilian's Fall 2026 promotion is here!

If you're ordering GilAir Plus pumps, bundle them with a calibrator kit and save up to 30%. One 5-pack gets you 25% off a Gilibrator 2, Gilibrator 3, or Go-Cal Pro. Two or more 5-packs bumps that to 30% — single kits and combo kits both qualify.

Offer valid through December 31, 2026. You don't want to miss these deals.

Learn more: https://landing.ohdglobal.com/gilian-bundle/

09/15/2026

Attending the NSC Safety Congress & Expo in Indianapolis?

Don't miss the chance to connect 1-on-1 with the OHD team, the only global provider of both quantitative respirator fit testing technologies recognized by OSHA and ISO.

Our team, led by Allen Isom and Kirk Olson, will be on-site until Wednesday at Booth #2642 with live demos of the QuantiFit2, AeroFit, SVANTEK, and Gilian equipment.

👉 Make sure to stop by Booth #2642 and say hello!

National Safety Council

09/11/2026

Twenty-five years ago, our nation faced its darkest day.

Today, we remember the 2,977 lives lost, and the 343 FDNY firefighters who made the ultimate sacrifice. We remember every first responder who ran toward danger, and the unbreakable spirit of a country that came together in the days and weeks that followed.

At OHD, our work is rooted in protecting the people who protect others. Today, we hold that close.

We honor. We remember. We will never forget.

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2200 Resource Drive
Hoover, AL
35242

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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