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OHD

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.

02/05/2026

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

In our latest 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 and join the conversation: https://ohdglobal.com/paprs-fit-testing/

02/04/2026

We are excited to be in Lyon this week for CBRNe Summit Europe 2026, where our European Business Development Manager, Adam Marczak, is joined by Arnault Delahaye of AD Air Solutions.

Together, they’re connecting with CBRNe professionals from across Europe and showcasing our cutting-edge military solutions, including QuantiFit2 Virtual Operator, MQT, and AeroFit.

Want to see how OHD can enhance the health, safety, and efficiency of your forces?
👉 Learn more about our military solutions: https://ohdglobal.com/military/

02/03/2026

Join us as we introduce the Gilian Dustlight Personal Dust Monitor, a wearable tool designed to give workers immediate, visual feedback on dust levels using an intuitive traffic light system.

🔹 Date: March 3, 2026
🔹 Time: 1:00 PM Central

In this FREE webinar, we’ll walk through real-world scenarios where seeing dust exposure in real time changes decisions on the job, how professionals are using wearable monitoring alongside traditional gravimetric sampling, and what to consider when deploying personal monitors in the field.

Whether you’re an industrial hygienist strengthening a sampling program or a safety manager exploring proactive dust monitoring, this session will help clarify where real-time visibility fits—and why it matters.

Secure your spot now!
Register here: https://us02web.zoom.us/webinar/register/4717701330619/WN_8am9q2ezQuS2WUL95JKIAg

01/23/2026

Managing fit testing shouldn’t feel overwhelming. If compliance tracking, reminders, and reporting are eating up your time, you’re not alone.

That’s why we built Logic Cloud: to make fit testing management simple, automated, and stress-free.

Whether you’re managing fit testing for a single team or multiple locations, Logic Cloud gives you the oversight and automation you need to stay ahead with confidence.

✅ Streamline compliance tracking
✅ Stay prepared for audits
✅ Modernize your fit testing program with ease

Stay compliant, stay confident.
Learn more about Logic Cloud: ohdglobal.com/logic-cloud/

01/19/2026

It was a pleasure to welcome Till Neumeier, CEO of Dustlight, to OHD headquarters last week. Till spent time with CEO Luke Allen, National Sales Manager Booth Armstrong, and Director of Marketing Laura Flowers aligning on strategy for 2026, touring the office, and getting a true taste of Alabama BBQ. Thanks to Till for a great visit and even better conversation. 💪

01/09/2026

Today, we salute the brave men and women in law enforcement who dedicate their lives to protecting our communities. Your courage and commitment inspire us all, thank you for all you do.

12/24/2025

🎄 Merry Christmas from all of us at OHD! Wishing you a safe and happy holiday season. We’ll be closed for the rest of the week and back to serve you on December 29.

12/16/2025

Congratulations to Hunter Chandler, OHD’s 2025 Person of the Year! 🏆

As one of our Technical Support Representatives, Hunter consistently goes above and beyond to support our customers and teammates alike. His commitment to doing things the right way, his deep product knowledge, and his willingness to help make a real impact across OHD.

Our CEO, Luke Allen, shared his thoughts on Hunter’s impact: "Hunter is an outstanding example of the OHD Core Values and has been a truly dynamic team member throughout 2025. His self-starting nature, drive, and collaborative spirit consistently elevate the team! I'm grateful for the energy he brings to OHD every day!"

Hunter, thank you for everything you do and for being such a strong reflection of what OHD stands for. This recognition is well deserved!

12/10/2025

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's CEO Luke Allen spotlights his favorite features of the JSP Safety Force®10 Full-Face Respirator and the Force®8 Half-Mask, and discusses their fit and feel with Allen Isom, our Inside Sales Manager.

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.

What do we love about JSP Force®10 and Force®8 respirators?

🔹 Thermoplastic Rubber Material
🔹 Multiple Sizes
🔹 Typhoon™ Exhalation Valve
🔹 Compatibility with PressToCheck™ Filters

Check the comments for a link to watch other Behind the Mask videos on other popular respirators!

12/05/2025

Your 2025 Logic Cloud Wrapped is here! ✅💙

Here’s what you accomplished for your team’s protection and compliance this year, powered by Logic Cloud.

Unlock your Wrapped! 👇
https://www.canva.com/design/DAG6lDV7mTc/zTBxeLj9_DeI39Qwez-Yug/view?

12/03/2025

If you’ve ever compared CNC and CNP fit test results and wondered why the numbers didn’t match, you’ll want to read this. 👇

In our latest blog, Dr. Stephanie Lynch, CIH, CSP, OHD’s Senior Technology and Research Manager, dives into how your testing method can change what your fit factor really means and why CNP and CNC results can’t be compared one-to-one. She also highlights how not understanding the differences between these methods can lead to false assumptions about respirator performance.

Read her full breakdown: https://ohdglobal.com/cnc-vs-cnp-fit-factor-explanation/

12/01/2025

Before the year wraps up, take a minute to check when your respirator fit testing instruments are due for calibration. Staying on an annual schedule helps keep your results accurate, your records audit-ready, and your team protected.

If your instruments are due for calibration soon, our prepaid calibration service packages make it easy to lock in pricing, plan ahead, and avoid last-minute downtime.

👉You can compare packages and choose what fits your program by visiting https://ohdglobal.com/calibrations/.

Address

2200 Resource Drive
Hoover, AL
35242

Opening Hours

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

Telephone

+12059800180

Website

http://www.ohdglobal.com/

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Our Story

OHD offers a range of products and services to help you protect your employees and manage your occupational risks. Whether you are looking for The Quantifit Respirator Fit Tester, The QuantiCheck for the world’s first quantitative user seal check, Noise Dosimeters, Audiometers, Vision Screeners, Breath Alcohol Instruments, or a Sound Level Meters, we can provide you with a complete, personalized solution.

OHD