Hearing Protection
Fit Testing

Hearing protection fit testing is a scientific procedure that measures the actual noise reduction provided by hearing protection devices (HPDs) for individual workers. Unlike generic Noise Reduction Ratings (NRR), fit testing provides Personal Attenuation Ratings (PAR) that account for individual ear canal shapes, proper fitting techniques, and real-world workplace conditions.

The testing is required under Australian WHS regulations and helps employers ensure their workers receive adequate protection from noise-induced hearing loss.

Hearing protection fit testing is required by Australian WHS regulations to monitor the hearing health of employees exposed to loud noise. It helps in the early detection of hearing loss and ensures that hearing protection measures are effective. The testing provides individual Personal Attenuation Ratings (PAR) that are more accurate than generic Noise Reduction Ratings (NRR).

Fit testing should be conducted at least annually, or whenever there is a change in hearing protection devices, to ensure ongoing effectiveness and compliance. Some high-risk environments may require more frequent testing as determined by your occupational hygienist.

While an employee can refuse a test, it is the employer’s responsibility to ensure a safe workplace under WHS legislation. Refusal may have implications for both the employee and the employer in terms of WHS compliance and duty of care obligations.

Hearing protection fit testing should be conducted at least annually for all workers exposed to hazardous noise levels. Additional testing is required when:

• Changing to different hearing protection devices
• Significant weight loss or gain affecting ear canal shape
• After ear infections or medical procedures
• When workers report discomfort or poor fit
• In high-risk environments, testing may be required every 6 months

Hearing protection fit testing in Australia must comply with these key standards:

1. AS/NZS 1269.3:2005 – Occupational noise management – Hearing protector programs
2. AS/NZS 1270:2002 – Acoustics – Hearing protectors
3. AS/NZS 1269.4:2005 – Occupational noise management – Audiometric testing
4. Model Code of Practice – Managing Noise and Preventing Hearing Loss at Work
5. WHS Regulations 2017 – Workplace Health and Safety compliance requirements