Occupational health testing delivered on site across California and beyond

On-site occupational health testing

We provide on-site OSHA, occupational health, and other testing services across California and beyond.

Over our 30+ year history, we have served tens of thousands of clients with great value and high satisfaction. Contact us today to get started!

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Services offered

Affordable PFAS testing

Respiratory protection and testing

Our advanced tech delivers respiratory testing in accordance with OSHA CFR 1910.134 and CA OSHA CCR 5144 Title 8

Convenient PFAS blood testing at home

Hearing conservation testing

Efficient and effective testing using multiple protocols including OSHA 29 CFR 1910.95 and CCR Title 17 § 2952 (c)(1)

Timeline of your results in the web app

Vision screening

We use the latest automated vision screening technology to test to NFPA 1580 and CCR Title 17 § 2952 (c)(1)

Timeline of your results in the web app

DOT physicals & MERS exams

Essential testing for all commercial driving in accordance with FMCSA standards

Key industries served

First Responders & Public Safety

Comprehensive occupational health testing for firefighters, law enforcement, EMTs, and paramedics. We come to your station or workplace to deliver OSHA-compliant respiratory fit testing, audiometric testing, and vision screening, keeping your team certified, protected, and mission-ready.

Hospitals & Healthcare

OSHA compliance testing tailored to healthcare environments, including N95 respirator fit testing, hearing conservation, and vision screening for clinical and support staff. We work around your shift schedules to minimize disruption while keeping your workforce fully certified.

Industrial & Commercial

On-site respiratory protection and hearing conservation testing for energy, biotech, semiconductors, construction, and commercial operations of all sizes. We manage large-scale workforce testing efficiently, with results and certifications delivered quickly.

Agriculture

Bilingual on-site occupational health testing designed for California's agricultural workforce. From respirator fit testing for pesticide exposure to hearing conservation for equipment operators, we bring compliant, accessible testing in English and Spanish.

Schools & Education

Student hearing and vision screening services in accordance with CCR Title 17, § 2952 (c)(1). Our streamlined testing process helps entire school districts complete mandatory hearing and vision testing smoothly.

Aviation & Transit

Mandatory on-site OSHA testing for aviation workers, airport ground staff, and public transit workers.

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Convenient

We come to you. Our qualified technicians travel to your worksite, station, or facility, saving you time

Reliable

Our staff have decades of experience and are trained on the latest regulations and technology

Fast

We typically release test results and certifications within 1 working day of our site visit

What Our Clients Say

Your team arrived on site at our Union Pacific bridge compound located in Citrus Heights Calif. They arrived on time and were very professional and courteous with our bridge crews. The planning and preparedness paid off with our crews being able to be respirator fit tested and have their hearing tested with no delays. Our crews were then able to get back to their regular schedules. I would like to thank Fast Response Onsite Testing for a great job. Hopefully we will be able to schedule them for our annual testing next year!

Terry Jones
Union Pacific Bridge Dept.

There is absolutely no way we could have achieved the high employee compliance numbers without the boundless enthusiasm, infinite energy and daily dedication of the Frost Team. This special group of people was tireless in their efforts to provide quality service to our staff - always in a polite and gracious manner. Even when sometimes these courtesies were not returned, your staff remained gracious and accommodating. The FROST Team is reliable, efficient and always the first to volunteer to go the extra mile to accommodate someone. We consider you and your staff part of the John Muir family and look forward to seeing you all next year. Thanks for everything! Happy N95 Day!

Susan, Deanna, Mary, Kim, and Jeri
John Muir Health

I would like to let you know how very pleased my facility is with the service your company provided to us during their 8 days here. To be honest, we were a little hesitant going into this year, based on our past experience with testing. From signing the contract to receiving test records, outstanding service was provided. I have had numerous employees tell me how fast their test was completed, and that the testers made it a more enjoyable experience for them. From my standpoint, the FROST team were extremely efficient, professional, and knowledgeable. They went above and beyond our expectations; I hope that we can look forward to having the two of them back next year.

Jolene K. Sitorius RN
Great Plains Health
Fast Response On Site Testing,
3190 S. Bascom Ave,
Suite 155,
San Jose, CA 95124