We strive to deliver comfortable, well-designed products that offer your workers the best hearing protection available. At 3M we're dedicated to the success of your entire hearing conservation program.

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Hearing protection

Noise-induced hearing loss is 100% preventable with properly fitted hearing protection.

FIND PRODUCTS BY NOISE REDUCTION RATING
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3M™ PELTOR™ Wireless Communication Accessory

Hearing protection and communication without compromise.

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Noise Reduction Rating (NRR)
The NRR is a single-number method that describes the overall sound reduction across frequencies (attenuation) of an HPD in decibels (dB) based on  a laboratory test. Since the NRR is a laboratory test, it is recognized that it may overestimate the protection achieved by users in their workplace settings. Therefore, it is recommended that the NRR be derated in order to better estimate workplace protection. The NRR derating scheme can be found in CSA Z94.2-14 Hearing Protection Devices Standards, Table 2: Effective rating calculations for the NRR.
Noise Reduction Rating (NRR)
The NRR is a single-number method that describes the overall sound reduction across frequencies (attenuation) of an HPD in decibels (dB) based on  a laboratory test. Since the NRR is a laboratory test, it is recognized that it may overestimate the protection achieved by users in their workplace settings. Therefore, it is recommended that the NRR be derated in order to better estimate workplace protection. The NRR derating scheme can be found in CSA Z94.2-14 Hearing Protection Devices Standards, Table 2: Effective rating calculations for the NRR.
CSA Class
The CSA Class describes the sound level reduction (attenuation) of an HPD using the letters A, B, or C, which pre-assigns the HPD according to defined attenuation ranges. The CSA Class can be found in CSA Z94.2-14 Hearing Protection Devices Standards, Table 3: Assignment of class based on the octave band attenuation values measured according to ANSI S3.19. It is important to note that the Class pertains only to level of attenuation of the HPD, not to any of its other characteristics.
CSA Class
The CSA Class describes the sound level reduction (attenuation) of an HPD using the letters A, B, or C, which pre-assigns the HPD according to defined attenuation ranges. The CSA Class can be found in CSA Z94.2-14 Hearing Protection Devices Standards, Table 3: Assignment of class based on the octave band attenuation values measured according to ANSI S3.19. It is important to note that the Class pertains only to level of attenuation of the HPD, not to any of its other characteristics.

Find products by noise reduction rating

The NRR is a single-number method that describes the overall sound level reduction across frequencies (attenuation) of a hearing protection device (HPD) in decibels (dB) based on a laboratory test. Read more


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Find products by CSA class

The CSA Class describes the sound level reduction (attenuation) of an HPD, which pre-assigns the HPD according to defined attenuation ranges. Read more

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Featured hearing protection products

  • 3M™ E-A-R™ Classic Earplugs

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  • 3M™ UltraFit Earplugs

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