MHD has rebranded. Same commitment to safety. New Look.
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WORK
WITHOUT
WORRY

We help you stay OSHA compliant and keep your employees safe with on-site occupational health, safety, and industrial hygiene services.

Work With
Safety Experts

All MHD services are performed by former first responders:
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MHD provides on-site occupational health, safety, and industrial hygiene services including:

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Military

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Firefighters

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Paramedics

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Police Officers

Over 2,000 Satisfied Clients Including

Preferred Materials
Cornell Scott Hill Health Center
BJC Health System
Nebraska Medicine
Northrop Grumman
AJINOMOTO
NPR
National Park Service
Komatsu
Range USA
Leisure Care
Fritolay
owens corning

How can we help you?

Hearing Testing

MHD uses cutting-edge audiometers that allow tests to be conducted in an office or conference room. This minimizes downtime, travel costs, and disruptions.
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Respirator Fit Testing

We offer fit testing for all respirator types, including N-95 masks, Half Face, Full Face, and SCBA masks. Our team comes to your business, providing a convenient and efficient experience.
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Clean Room Certification

We provide expert cleanroom testing and certification, tailored to your needs. Our rigorous testing meets ISO 14644-1, ISO 14644-2, and FS209e standards.
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Pulmonary Function Testing

Our NIOSH-certified technicians perform onsite Pulmonary Function Testing (Spirometry) for your employees.
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Exposure Assessments: Noise & Air

Our on-site assessments evaluate noise and air exposure levels. All results are reviewed and signed by our Certified Industrial Hygienist or Acoustical Engineer.
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Respirator Medical Evaluations

With these online forms, your employees can complete their medical evaluation from any device with Internet access. Available in Spanish.
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Safety Data Sheet (SDS) Creation and Review

Our chemical management team offers SDS authoring and updates needed to meet local, national, and global regulations, including OSHA, GHS, WHMIS, REACH, and CHEMTREC.
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Workplace Safety Scan

This quick, non-disruptive assessment helps you identify potential safety risks and provides actionable insights for a more compliant workplace.
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Our Proven Process

Learn

  • Ask questions
  • Find out what you need
  • Tell you about our solutions

Propose

  • Develop a quote
  • Agree on solutions & pricing
  • Schedule the service

Prepare

  • Collect information
  • Explain what to expect on your service day

Service

  • Provide reports
  • Answer questions
  • Be an ongoing resource

170 Five Star Reviews And Counting

“The team at MHD were very helpful through the entire process. Sydney was great to work with and extremely professional, he took time to discuss results with each employee. Highly recommend.”
Scott F.
“Valerie Harris was the MHD rep that we were fortunate enough to have work with our team for fit testing. Right from the introduction her professionalism and compassion for people shined through. Thank you, Valerie, and MHD.”
Terry D.
“Our company has been working with MHD for years now. We’ve never been disappointed. Their service is top notch: easy, fast and reliable. Mr. Sean Hemingway is absolutely amazing! 100% recommended!”
Vianny H.
“My company needed a mobile service to come onsite and recertify our respirator mask wearers right away. MHD was able to accommodate our short timeline promptly, efficiently, and professionally. We will definitely be using them again for this service and looking at their other services as well. Thank you MHD.”
Debbie H.
“First time using MHD for audiometric testing and very impressed with the overall service, simple, reliable and quick communication. Highly recommend using this team for compliance needs.”
Alex R.
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Nationwide Coverage
From Local Technicians

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