Workplace Safety & Compliance for the Construction Industry

Performed by Former First Responders

Focused on Safety, Built on Service

On a construction site, safety isn't a checkbox — it's a commitment. At MHD, we specialize in on-site OSHA-compliant services designed specifically for construction crews, general contractors, and field teams. From respirator fit testing to air monitoring and hearing evaluations, our experienced Safety Responders come to your jobsite and get the job done efficiently — with minimal disruption.

Over 2,000 Satisfied Clients Including

Why Construction Teams Trust MHD

We don’t just provide safety services — we live safety. Every member of our team is a former first responder — firefighters, paramedics, veterans, and law enforcement professionals with real-world experience. That means when we step onto your site, we bring precision, calm under pressure, and a service-first mindset.

Fully OSHA-Compliant Services

On-Site Convenience for Busy Crews

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Minimal Downtime, Maximum Protection

Led by Field-Tested Safety Responders

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Nationwide Coverage by Local Teams

Services for Construction Sites

Respirator Fit Testing

We offer qualitative and quantitative fit testing for N95, Half Face, Full Face, and SCBA masks — fully compliant with OSHA 29 CFR 1910.134.

Hearing Testing

Our portable audiometers allow for accurate, booth-free testing on-site in any quiet room or trailer.

Noise & Air Exposure Assessments

We conduct on-site evaluations of jobsite exposure levels. All results are reviewed and certified by our Industrial Hygienist or Acoustical Engineer.

Respirator Medical Evaluations

Your team can complete medical clearance online — anytime, anywhere, in English or Spanish.

Pulmonary Function Testing (Spirometry)

Performed on-site by NIOSH-certified Safety Responders for employees required to wear respiratory protection.

Safety Data Sheet (SDS) Services

We create and review your SDS documentation to ensure compliance with OSHA, GHS, WHMIS, REACH, and other global standards.

Workplace Safety Scan

A non-intrusive walkthrough that identifies safety gaps and provides clear, actionable recommendations for compliance and hazard prevention.

What Our Clients Are Saying

“Being able to use my facility to perform audiometric testing is a big advantage to provide my personnel with the opportunity to assess their hearing. The cost savings by doing this are tremendous as well These folks are very professional and provide the necessary means to offer the most help to my company.”

Bill Keesler

Safety Responders You Can Rely On

Our background in emergency response means we know how to act quickly, think clearly, and prioritize the safety of every person on-site. That same mindset guides every service we provide. We're not just there to test or evaluate — we're there to protect your people.

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