Frequently Asked Hearing Protection Questions

Do you have a question or query regarding custom made or ready-fit hearing protection?

Please see the questions and answers below or contact us directly via email.


Our ACS Pro27 and Pro31 are AS/NZS 1270 tested class 5 hearing protectors. Class 5 is the highest class. To purchase a set go to our shop.

Under the Australian Standard AS/NZS 1270:2002, the class is an easy way to choose a hearing protector appropriate to a noise exposure. The standard rates hearing protection into five classes, with Class 1 being the lowest level of protection and Class 5 being the highest level. Pacific Ears offers a selection of hearing protection devices with that are rated Class 5.

Our Class 5 Rated hearing protection products:

  • Pro 31 Earplugs – Custom earplugs for industrial, Class 5 hearing protection
  • Pro27 Communicator – Complete Class 5 hearing protection for noisy industrial environments

There are 5 Hearing protection classes:

  • Class 1 – less than 90 decibels (dB)
  • Class 2 – 90 to less than 100 dB.
  • Class 3 – 95 to less than 100 dB.
  • Class 4 – 100 to less than 105 dB.
  • Class 5 – 105 to less than 110 dB.

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