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Standards and pictograms - Hearing protection

All performance levels, pictograms and information specified on this page comply with the state as of September 2025. These are subject to change during the validity of this page. Please contact us for any queries or current information. All information is subject to change.


General explanations of achieved performance levels (all tests were carried out under laboratory conditions):

1-6 / A-F Achieved test result (the higher, the better)

0 Minimum performance level not achieved

X Not tested or not applicable due to the material or design

EN 352-1_
EN 352-1

Ear muffs - General requirements
Specifies requirements for the construction, design, performance, characterisation and user information of earmuffs. A particular focus is on sound attenuation. It applies exclusively to earmuffs intended for defined head sizes and excludes models for attachment to head or face protection systems.

EN 352-2_
EN 352-2

Ear plugs - General requirements
Specifies requirements for the construction, design, performance, characterisation and user information of earplugs. A particular focus is on sound attenuation. Ergonomic aspects are taken into account - in particular the interaction between user, product and working environment in which the ear plugs are typically used.

EN 352-3_
EN 352-3

Earmuffs attached to head protection and/or face protection devices - General requirements
Specifies requirements for the construction, design, performance, characterisation and user information of fixed earmuffs. A particular focus is on sound attenuation. It applies to earmuffs that are attached to head or face protection. Ergonomic aspects and use in the working environment are taken into account.

Weight_
Weight
Indicates the weight of a headgear with fittings in grams (g).
SNR_
SNR
The SNR value (Single Number Rating) indicates how much an ear protection reduces the noise level in decibels (dB). It is an average attenuation value across all frequencies. The higher the SNR, the better the noise reduction.
Detectable_
Detectable
This product identifies articles that are detectable. Thanks to integrated metal or X-ray recognisable components, they can be recognised by detection systems. This increases product safety and minimises the risk of contamination.
Premium quality_
Premium quality
The quality of our products is our first priority and our whole product range is meeting our high standards. Products which have further premium features (e.g. due material selection, fitting, characteristics, finishing) are marked with this pictrogram.
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