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Hearing protection

Hearing protection is always necessary when working in a noisy environment. From 80 dB (A) the employer has to offer ear protection and from 85 dB (A) there is a compulsory labor for employees. Hearing damage as a result of noise is one of the most common occupational diseases in the Netherlands. This is easily prevented by choosing the right hearing protection. In this respect, the correct sound absorption and wearing comfort must be taken into account. If an employee takes his hearing protection because he does not feel comfortable with this or for any other reason, his health risks.

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When is sound harmful?

The limit value (legal standard) is set at 80 dB (A) with an exposure of 8 hours per day. At this level, the employer must provide professional hearing protection in the workplace. From 85 dB (A), noise is 'harmful' and the employer must take technical-organizational measures. Such as making it clear that hearing protection must be worn by means of pictograms. Please note, noise pollution is not only harmful to hearing.

What is dB (A)?

dB (A) is a unit with which the strength of the sound can be expressed on the sensitivity of the human ear. The reason that the dB (A) is used instead of an ordinary decibel for noise measurements and sound calculations has to do with the sensitivity of our ears. This is not the same for the different frequencies of the sound. The following describes the maximum exposure duration at a given sound pressure without being harmful.

Maximum time 8 Hours 4 Hours 48 minutes 5 minutes 30 seconds
Noise level (in dB (A)) 80 83 90 100 110

If it turns out that the noise level is exceeded on the work floor, the best prevention is tackling the source. If the sound can not be encapsulated or the level remains too high, hearing protection is a good follow-up step.

Type professional hearing protection

Roll-up earplugs

For most users roll-up earplugs of slowly expanding foam material ideal in combination and protection. If you have inserted the earplug into the ear, the foam will expand. The earplug thus takes the form of the ear canal and ensures safe protection.

Preformed earplugs

De preformed earplugs are made of pliable materials and are preformed in such a way that they fit into most ear canals. Usually the preformed earplugs are equipped with one cord so that you are less likely to lose them. The reusable earplugs are comfortable, hygienic and in most cases cheaper.

Ear braces

Ear braces are user-friendly, convenient and very comfortable. The hearing aid is easy to put on and off, to hang around the neck and is therefore useful if it is not worn continuously. Most hearing aids have replacement caps, so that a hearing aid is a cost-conscious investment.

Ear caps

A hearing hood consists of two rigid shells with a soft plastic cushion that fall over the ears and seal the ears to dampen the ambient noise. The ear muffs are popular because they are user-friendly and have a high wearing comfort. They are available in versions with a headband, and / or neck brace, helmet attachment and are foldable. This means that the ear can accommodate the most common situations. Ear muffs can be divided into passive, electronic and communication ear muffs.


Otoplastics are custom hearing protectors. Each otoplasty is unique and specially adapted to the ear canals. Note that every five years the ear canal changes in connection with the growth of the ears. A special filter is installed during the production process of the otoplastics. This ensures that all harmful noise is smoothed and the amount of dB (A) is reduced to below the limit value of 80 dB (A). Due to the optimal protection and perfect fit, the otoplasty is the most efficient and comfortable hearing protection.


All PPE from our professional hearing protection is CE-approved in accordance with the European EN standards applicable to the application. Below are the most important standards:

  • AND 352-1: 2002: Ear caps
  • AND 352-2: 2002: Earplugs
  • AND 352-3: 2002: Earmuffs attached to industrial safety helmets
  • AND 352-4: 2001: Level-dependent ear muffs
  • AND 352-5: 2003: Active noise-reducing ear muffs
  • AND 352-6: 2003: Ear muffs with electric audio input
  • EN 352-7: 2003: Level-dependent ear plugs
  • AND 352-8: 2008: Ear muffs with music supply
  • AND 458: 2016: Recommendation for choice, use, care and maintenance
  • AND 13819-1: 2003: Physical test methods hearing protectors
  • AND 13819-2: 2002: Acoustic test methods hearing protectors