Fast, Accurate, and OSHA-Ready

Fit Testing to improve hearing protection

Ensure hearing protection works as intended with our integrated REAT fit test, designed for compliance and safety.

Accurate PAR Calculation

Measures attenuation at 500, 2000, and 4000 Hz.

Objective Pass/Fail Determination

Compares PAR to NRR, ensuring proper protection.

Seamless Workflow Integration

Built into our digital workflow, taking just 1.5 minutes.

OSHA-Ready Compliance

Stay ahead of upcoming 29 CFR 1910.95 fit test requirements.

How does Fit Testing Work?

Ensure hearing protection is effective with a quick and accurate fit test. Our system measures real-ear attenuation, verifies proper protection, and helps employees adjust for optimal safety—all in just minutes.

  • Step 1: Complete Audiogram & Insert Earplugs

    After finishing the audiogram test, the employee inserts their hearing protection, preparing for the fit test.

  • Step 2: Run Frequency Test & Measure Attenuation

    The system plays tones at 500, 2000, and 4000 Hz, measuring how much sound is blocked in each ear.

  • Step 3: Calculate, Compare & Confirm Protection

    The system determines the Personal Attenuation Rating (PAR), checks it against safety standards, and prompts a re-test if needed.

Frequently Asked Questions

Here are some common questions we receive about ear plug fit testing.

What is earplug fit testing?

Earplug fit testing measures how well foam earplugs reduce noise for an individual. It ensures that employees achieve the proper fit and protection level based on their workplace noise exposure.

Why is fit testing important for earplugs?

Foam earplugs must be inserted correctly to provide full protection. Fit testing verifies that employees are using them properly and getting the expected noise reduction to prevent long-term hearing damage.

Is earplug fit testing required by OSHA?

OSHA does not currently require annual earplug fit testing under 29 CFR 1910.95, but it is considered a best practice. The agency is moving toward requiring it to ensure hearing conservation programs are effective.

How does earplug fit testing work?

Fit testing uses Real-Ear Attenuation at Threshold (REAT) to measure how much sound is blocked by earplugs. Employees insert their earplugs, and the system plays test tones at 500, 2000, and 4000 Hz to assess their actual noise reduction.

Do I need to be OHC certified or an audiologist to run the testing?

Aside from several US states, you don’t need to be OHC certified or an audiologist to run the testing. Our system is designed for ease of use, and OSHA doesn’t require certification for automated tests if you have a professional supervisor, which Soundtrace provides. We train your team to ensure accurate and compliant testing.

How long does it take to run an audiogram test? 

An audiogram test typically takes just 6 to 8 minutes per employee. The process includes a brief pre-test questionnaire, a 4 to 5-minute automated hearing test, and a quick review of the results. This efficient process minimizes downtime and keeps your operations running smoothly.

What happens if an employee fails the fit test?

If the test shows insufficient noise reduction, the employee will be instructed to reinsert their earplugs and retest. This ensures a proper seal and better protection.

How is fit testing different from an audiogram?

An audiogram tests an employee’s hearing ability, while earplug fit testing ensures their hearing protection is working correctly by measuring real attenuation.

Still have questions?