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

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.

10/13/2025

It was great having former OHD CEO Howie Mills back at our Birmingham headquarters last week.

Howie’s leadership has left a lasting mark on OHD, and we were glad to reconnect, share stories, and look ahead together with our current leadership team: Luke Allen (CEO), Hunter Strickler (COO), Michael Hicks (CFO), joined by Glenn Warr, CEO of Sensidyne.

Overall, it was a good day of connection, perspective, and honoring OHD’s past while focusing on what’s ahead!

10/10/2025

Good food. Great people. Perfect fall day.

Our team spent the afternoon enjoying great food, laughter, and time together, and it’s moments like this that remind us honoring our mission starts with honoring our people.

Big thanks to our grillmasters, Luke Allen, Allen Isom, and Craig Simmons, for firing up the grill and fueling a memorable OHD Fall Cookout! 🍁💪🏼

10/09/2025

OHD was proud to serve as a Gold Sponsor of the ISRP Europe Respiratory Fit Testing Workshop in Milan, Italy. This event brought together global experts and practitioners to explore the latest developments in fit testing standards, technologies, and programs.

Our European Business Development Manager, Adam Marczak, and Senior Technology & Research Manager, Stephanie Lynch, PhD, CIH, CSP, both presented on respiratory fit testing and demonstrated our QuantiFit2® (CNP) and AeroFit® (CNC) instruments.

We were also proud to have our Italian partners, Recom Industriale, join us at the event. It was so great spending time with our friend and partner Alessandro Bersani!

As the only global manufacturer offering both Controlled Negative Pressure (CNP) and Condensation Nuclei Counting (CNC) technologies, OHD is committed to advancing the science and accessibility of respiratory fit testing worldwide.

10/08/2025

Every fit test is more than a requirement.
It’s protection you can measure.

The QuantiFit2, powered by OHD’s patented Controlled Negative Pressure (CNP) technology, delivers an accurate fit test in under 2 minutes — with no consumables.

• Unlimited Portability
• Full OSHA and ISO Compliant Test in 2 minutes or less
• Patented Controlled Negative Pressure Technology Utilizing Air as the Challenge Agent

See what else sets the QuantiFit2 apart: https://ohdglobal.com/product/quantifit2/

10/07/2025

We’re excited to be in Los Angeles this week for CBRNe Summit USA 2025, organized by Intelligence-Sec!

Stop by the OHD booth and meet Booth Armstrong, our National Sales Manager. Throughout the week, he will be hosting live demos of the QuantiFit2™ and showcasing other OHD solutions built to strengthen military protection programs.

Come see our technology up close, talk fit testing, and discover how OHD can help keep your teams mission-ready. 💪

10/06/2025

During Fire Prevention Week, we’re highlighting how proper fit testing helps keep firefighters safe during every call and beyond.

Top 3 Ways Fit Testing Supports Firefighter Safety:

1️⃣ Blocks toxic exposure
2️⃣ Verifies protection through every change
3️⃣ Builds confidence in critical moments

Every secure seal helps prevent exposure to the carcinogens and particulates that threaten firefighter health.

Let’s protect those who protect us.
Learn more at ohdglobal.com

10/01/2025

When a Fail Means You Succeeded...

Every failed fit test is a chance to spot a problem before it puts workers at risk. The real value of fit testing isn’t in how many people pass, it is in what failures reveal.

Discover the real purpose of fit testing, and why embracing failure might be the smartest move you make.

Read more: https://ohdglobal.com/fit-testing-vs-fit-passing/

09/30/2025

OHD is proud to join our partners ABT Sweden AB at the CBRNe Protection Symposium in Malmö, Sweden.

Adam Marczak, OHD’s European Business Development Manager, is on site and hosting LIVE demos of:
🔹 QuantiFit2: our CNP fit testing instrument for elastomeric respirators
🔹 AeroFit: our CNC fit testing solution for both disposable and elastomeric respirators
🔹 Other OHD solutions designed to support military respiratory protection programs.

Visit our booth to see our instruments in action, chat with us about your fit testing program, and discover how our solutions can enhance the health, safety, and efficiency of your personnel.

09/29/2025

ICYMI: Last week, we hosted the Inside AeroFit webinar, giving an exclusive look at OHD’s new CNC respirator fit testing instrument for both elastomeric and disposable respirators.

Catch the full recording to:
▫️ Hear directly from the experts who created AeroFit
▫️ Watch a live demo of its key features
▫️ Explore real-world use cases and applications

Watch the webinar here: https://www.youtube.com/watch?v=aTcMPF0YKSk

09/26/2025

Every office has that one coworker who makes everyone’s day brighter. For OHD, it’s Maggie Mae! 🐾

Maggie is hands-down the hardest worker in the office (if you don’t count nap time).💤 From her morning patrols to her careful oversight of hallway traffic, she approaches each task with unmatched dedication.

We hope you enjoyed following her around for a (very busy) day in her life!💻

09/23/2025

Ever hand someone a fit testing device and wonder if they really know how to use it?

OHD Academy gives your team:
• Interactive courses on QuantiFit2™ (with AeroFit® coming soon)
• Step-by-step how-to guides and quizzes to reinforce learning
• Certificates of completion for easy proof of training

✅ Learn at your own pace.
✅ Log in, log out, and pick up right where you left off.
✅ Keep your team confident and consistent with their fit testing.

When operators are trained well, your fit testing runs smoothly.
Explore OHD Academy today: https://ohdglobal.com/ohd-academy/

09/22/2025

The long-awaited AeroFit Webinar: Inside AeroFit is happening in just TWO days!

If you haven’t registered yet — what are you waiting for? This is your chance to:
🔹 Hear the story behind AeroFit directly from the experts who created it
🔹 See a live demonstration of its key features
🔹 Explore real-world use cases and applications

Already registered? Mark your calendar and get ready!

👉 Haven’t registered yet? Don’t miss this opportunity, register now: https://us02web.zoom.us/webinar/register/3517581261372/WN_3w6M4rohQoWv-_V3lmxiHQ #/registration

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