What is a hearing protection fit test?

Devices used to measure how well hearing protectors fit a wearer are finding their place in workplace health and safety programs.

These devices are commonly referred to as field attenuation estimation systems or FAES for short. They provide a measurement for the real attenuation provided to a user wearing a hearing protector like an ear plug or earmuff.

FAES will determine a personal attenuation rating (PAR) specific to the wearer and a make/model/size of hearing protector.

This rating often differs from the noise reduction rating (NRR) for a given hearing protection device (HPD). The PAR can then be used to determine if the hearing protector provides adequate protection for the user.

FAES are valuable additions to any hearing loss prevention program as they help wearers understand the importance of proper selection, use and care of their hearing protector. FAES can be used to show how choosing the right shape and size of ear plug along with proper insertion technique can affect the level of protection.

We offer the following FAES options from Honeywell, 3M and Tremetrics.

Honeywell™ VeriPRO™ Fit Testing System

VeriPro headset by howard leight with PC in the background

VeriPRO’s three-part process checks the effectiveness of an employee’s ear plug fit in each ear over a range of frequencies. The safety manager can then view this information in individual reports.

The software was designed to be easy to install on PC, with a straightforward interface and is simple to operate even for people who aren’t regular computer users.

The VeriPRO headphones are optimized for use with any ear plugs and calibrated to the tones used in the VeriPRO test.

The audio processor converts digital signal from the software, calibrates it to the headphones and amplifies the sound.

Features and benefits

  • Measures the PAR for each employee.
  • Works with any ear plug — corded or uncorded — from any manufacturer.
  • Fulfills regulatory requirements to ensure proper initial fit of hearing protection.
  • Documents training and proper fit for new or existing employees.
  • Provides an ideal opportunity for one-on-one education.

3M™ E-A-Rfit™ Dual-Ear Validation System

Deconstructed view of the 3M ear fit test and all its parts

3M E-A-Rfit offers a complete solution for hearing protection fit testing. It lets users fit test dual-ear and earmuffs with a user-friendly interface.

Individual fit testing using F-MIRE

Using field microphone-in-real-ear (F-MIRE) technology, E-A-Rfit generates a personal attenuation rating (PAR) in under 5 seconds for both ears. The test takes seven standard measured testing frequencies into account.

Fit testing in three steps:

  1. Fit: Have the employee insert their ear plugs or put on their earmuffs.
  2. Test: Connect to microphones and begin speaker test sound.
  3. Assess: Use PAR to customize hearing protector selection.

Features and benefits

  • Tests both ears simultaneously in under 5 seconds.
  • Ear plug and earmuff testing capability.
  • Fast and easy way to find an employee’s personal attenuation rating (PAR).
  • Tests for seven frequencies from 125Hz to 8000Hz.
  • Science-based quantitative testing.
determining a pass and fail with the 3M hearing fit test

Tremetrics INTEGRAfit® Quantitative Hearing Fit Testing

IntegraFit workplace hearing fit testing

INTEGRAfit offers quantitative fit testing for any brand of ear plug. It uses a special headset and an iPad® app to provide reliable results for hearing protection.

Features and benefits

  • Compliance mode generates PAR in real-time without removing the employee’s hearing protection.
  • Evaluates any brand of insert hearing protection on the market including custom plugs.
  • Tests three frequencies (500 Hz, 1000 Hz, 2000 Hz).
  • Provides documentation of proper fit and training for employees.
  • Includes training mode.
  • Can import and export test data to Workplace Applications.

Need better hearing protection?

Visit our hearing protection devices page.

Have a question?

Our team of hearing specialists is ready to help with any questions you may have.

Fill out the form on this page to get started and a member of our team will contact you.

We can provide product recommendations, pricing and user training.

How to buy:

You can buy most of our hearing protector fit testing products through our online shop.

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